81139860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:227

約数の個数: 192

約数和(自身を含む): 270950400

約数和(自身を除く): 189810540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 47, 54, 60, 69, 90, 92, 94, 108, 115, 135, 138, 139, 141, 180, 188, 207, 230, 235, 270, 276, 278, 282, 345, 414, 417, 423, 460, 470, 540, 556, 564, 621, 690, 695, 705, 828, 834, 846, 940, 1035, 1081, 1242, 1251, 1269, 1380, 1390, 1410, 1668, 1692, 2070, 2085, 2115, 2162, 2484, 2502, 2538, 2780, 2820, 3105, 3197, 3243, 3753, 4140, 4170, 4230, 4324, 5004, 5076, 5405, 6210, 6255, 6345, 6394, 6486, 6533, 7506, 8340, 8460, 9591, 9729, 10810, 12420, 12510, 12690, 12788, 12972, 13066, 15012, 15985, 16215, 18765, 19182, 19458, 19599, 21620, 25020, 25380, 26132, 28773, 29187, 31970, 32430, 32665, 37530, 38364, 38916, 39198, 47955, 48645, 57546, 58374, 58797, 63940, 64860, 65330, 75060, 78396, 86319, 95910, 97290, 97995, 115092, 116748, 117594, 130660, 143865, 145935, 150259, 172638, 176391, 191820, 194580, 195990, 235188, 287730, 291870, 293985, 300518, 345276, 352782, 391980, 431595, 450777, 575460, 583740, 587970, 601036, 705564, 751295, 863190, 881955, 901554, 1175940, 1352331, 1502590, 1726380, 1763910, 1803108, 2253885, 2704662, 3005180, 3527820, 4056993, 4507770, 5409324, 6761655, 8113986, 9015540, 13523310, 16227972, 20284965, 27046620, 40569930, 81139860]

約数ペア:

[(1, 81139860), (2, 40569930), (3, 27046620), (4, 20284965), (5, 16227972), (6, 13523310), (9, 9015540), (10, 8113986), (12, 6761655), (15, 5409324), (18, 4507770), (20, 4056993), (23, 3527820), (27, 3005180), (30, 2704662), (36, 2253885), (45, 1803108), (46, 1763910), (47, 1726380), (54, 1502590), (60, 1352331), (69, 1175940), (90, 901554), (92, 881955), (94, 863190), (108, 751295), (115, 705564), (135, 601036), (138, 587970), (139, 583740), (141, 575460), (180, 450777), (188, 431595), (207, 391980), (230, 352782), (235, 345276), (270, 300518), (276, 293985), (278, 291870), (282, 287730), (345, 235188), (414, 195990), (417, 194580), (423, 191820), (460, 176391), (470, 172638), (540, 150259), (556, 145935), (564, 143865), (621, 130660), (690, 117594), (695, 116748), (705, 115092), (828, 97995), (834, 97290), (846, 95910), (940, 86319), (1035, 78396), (1081, 75060), (1242, 65330), (1251, 64860), (1269, 63940), (1380, 58797), (1390, 58374), (1410, 57546), (1668, 48645), (1692, 47955), (2070, 39198), (2085, 38916), (2115, 38364), (2162, 37530), (2484, 32665), (2502, 32430), (2538, 31970), (2780, 29187), (2820, 28773), (3105, 26132), (3197, 25380), (3243, 25020), (3753, 21620), (4140, 19599), (4170, 19458), (4230, 19182), (4324, 18765), (5004, 16215), (5076, 15985), (5405, 15012), (6210, 13066), (6255, 12972), (6345, 12788), (6394, 12690), (6486, 12510), (6533, 12420), (7506, 10810), (8340, 9729), (8460, 9591)]