642906396

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:115

約数の個数: 270

約数和(自身を含む): 1993472096

約数和(自身を除く): 1350565700

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 27, 31, 33, 36, 44, 46, 54, 62, 66, 69, 81, 92, 93, 99, 108, 121, 124, 132, 138, 162, 186, 198, 207, 242, 253, 276, 279, 297, 324, 341, 363, 372, 396, 414, 484, 506, 529, 558, 594, 621, 682, 713, 726, 759, 828, 837, 891, 1012, 1023, 1058, 1089, 1116, 1188, 1242, 1364, 1426, 1452, 1518, 1587, 1674, 1782, 1863, 2046, 2116, 2139, 2178, 2277, 2484, 2511, 2783, 2852, 3036, 3069, 3174, 3267, 3348, 3564, 3726, 3751, 4092, 4278, 4356, 4554, 4761, 5022, 5566, 5819, 6138, 6348, 6417, 6534, 6831, 7452, 7502, 7843, 8349, 8556, 9108, 9207, 9522, 9801, 10044, 11132, 11253, 11638, 12276, 12834, 13068, 13662, 14283, 15004, 15686, 16399, 16698, 17457, 18414, 19044, 19251, 19602, 20493, 22506, 23276, 23529, 25047, 25668, 27324, 27621, 28566, 31372, 32798, 33396, 33759, 34914, 36828, 38502, 39204, 40986, 42849, 45012, 47058, 49197, 50094, 52371, 55242, 57132, 57753, 64009, 65596, 67518, 69828, 70587, 75141, 77004, 81972, 85698, 86273, 94116, 98394, 100188, 101277, 104742, 110484, 115506, 128018, 135036, 141174, 147591, 150282, 157113, 171396, 172546, 180389, 192027, 196788, 202554, 209484, 211761, 225423, 231012, 256036, 258819, 282348, 295182, 300564, 303831, 314226, 345092, 360778, 384054, 405108, 423522, 442773, 450846, 471339, 517638, 541167, 576081, 590364, 607662, 628452, 635283, 721556, 768108, 776457, 847044, 885546, 901692, 942678, 1035276, 1082334, 1152162, 1215324, 1270566, 1328319, 1552914, 1623501, 1728243, 1771092, 1885356, 1984279, 2164668, 2304324, 2329371, 2541132, 2656638, 3105828, 3247002, 3456486, 3968558, 4658742, 4870503, 5184729, 5313276, 5952837, 6494004, 6912972, 6988113, 7937116, 9317484, 9741006, 10369458, 11905674, 13976226, 14611509, 17858511, 19482012, 20738916, 23811348, 27952452, 29223018, 35717022, 53575533, 58446036, 71434044, 107151066, 160726599, 214302132, 321453198, 642906396]

約数ペア:

[(1, 642906396), (2, 321453198), (3, 214302132), (4, 160726599), (6, 107151066), (9, 71434044), (11, 58446036), (12, 53575533), (18, 35717022), (22, 29223018), (23, 27952452), (27, 23811348), (31, 20738916), (33, 19482012), (36, 17858511), (44, 14611509), (46, 13976226), (54, 11905674), (62, 10369458), (66, 9741006), (69, 9317484), (81, 7937116), (92, 6988113), (93, 6912972), (99, 6494004), (108, 5952837), (121, 5313276), (124, 5184729), (132, 4870503), (138, 4658742), (162, 3968558), (186, 3456486), (198, 3247002), (207, 3105828), (242, 2656638), (253, 2541132), (276, 2329371), (279, 2304324), (297, 2164668), (324, 1984279), (341, 1885356), (363, 1771092), (372, 1728243), (396, 1623501), (414, 1552914), (484, 1328319), (506, 1270566), (529, 1215324), (558, 1152162), (594, 1082334), (621, 1035276), (682, 942678), (713, 901692), (726, 885546), (759, 847044), (828, 776457), (837, 768108), (891, 721556), (1012, 635283), (1023, 628452), (1058, 607662), (1089, 590364), (1116, 576081), (1188, 541167), (1242, 517638), (1364, 471339), (1426, 450846), (1452, 442773), (1518, 423522), (1587, 405108), (1674, 384054), (1782, 360778), (1863, 345092), (2046, 314226), (2116, 303831), (2139, 300564), (2178, 295182), (2277, 282348), (2484, 258819), (2511, 256036), (2783, 231012), (2852, 225423), (3036, 211761), (3069, 209484), (3174, 202554), (3267, 196788), (3348, 192027), (3564, 180389), (3726, 172546), (3751, 171396), (4092, 157113), (4278, 150282), (4356, 147591), (4554, 141174), (4761, 135036), (5022, 128018), (5566, 115506), (5819, 110484), (6138, 104742), (6348, 101277), (6417, 100188), (6534, 98394), (6831, 94116), (7452, 86273), (7502, 85698), (7843, 81972), (8349, 77004), (8556, 75141), (9108, 70587), (9207, 69828), (9522, 67518), (9801, 65596), (10044, 64009), (11132, 57753), (11253, 57132), (11638, 55242), (12276, 52371), (12834, 50094), (13068, 49197), (13662, 47058), (14283, 45012), (15004, 42849), (15686, 40986), (16399, 39204), (16698, 38502), (17457, 36828), (18414, 34914), (19044, 33759), (19251, 33396), (19602, 32798), (20493, 31372), (22506, 28566), (23276, 27621), (23529, 27324), (25047, 25668)]