256408488

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:432

約数の個数: 192

約数和(自身を含む): 839030400

約数和(自身を除く): 582621912

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 29, 36, 42, 53, 56, 58, 63, 72, 84, 87, 106, 116, 126, 159, 168, 174, 203, 212, 232, 252, 261, 318, 331, 348, 371, 406, 424, 477, 504, 522, 609, 636, 662, 696, 742, 812, 954, 993, 1044, 1113, 1218, 1272, 1324, 1484, 1537, 1624, 1827, 1908, 1986, 2088, 2226, 2317, 2436, 2648, 2968, 2979, 3074, 3339, 3654, 3816, 3972, 4452, 4611, 4634, 4872, 5958, 6148, 6678, 6951, 7308, 7944, 8904, 9222, 9268, 9599, 10759, 11916, 12296, 13356, 13833, 13902, 14616, 17543, 18444, 18536, 19198, 20853, 21518, 23832, 26712, 27666, 27804, 28797, 32277, 35086, 36888, 38396, 41706, 43036, 52629, 55332, 55608, 57594, 64554, 67193, 70172, 76792, 83412, 86072, 86391, 96831, 105258, 110664, 115188, 122801, 129108, 134386, 140344, 157887, 166824, 172782, 193662, 201579, 210516, 230376, 245602, 258216, 268772, 315774, 345564, 368403, 387324, 403158, 421032, 491204, 508747, 537544, 604737, 631548, 691128, 736806, 774648, 806316, 982408, 1017494, 1105209, 1209474, 1263096, 1473612, 1526241, 1612632, 2034988, 2210418, 2418948, 2947224, 3052482, 3561229, 4069976, 4420836, 4578723, 4837896, 6104964, 7122458, 8841672, 9157446, 10683687, 12209928, 14244916, 18314892, 21367374, 28489832, 32051061, 36629784, 42734748, 64102122, 85469496, 128204244, 256408488]

約数ペア:

[(1, 256408488), (2, 128204244), (3, 85469496), (4, 64102122), (6, 42734748), (7, 36629784), (8, 32051061), (9, 28489832), (12, 21367374), (14, 18314892), (18, 14244916), (21, 12209928), (24, 10683687), (28, 9157446), (29, 8841672), (36, 7122458), (42, 6104964), (53, 4837896), (56, 4578723), (58, 4420836), (63, 4069976), (72, 3561229), (84, 3052482), (87, 2947224), (106, 2418948), (116, 2210418), (126, 2034988), (159, 1612632), (168, 1526241), (174, 1473612), (203, 1263096), (212, 1209474), (232, 1105209), (252, 1017494), (261, 982408), (318, 806316), (331, 774648), (348, 736806), (371, 691128), (406, 631548), (424, 604737), (477, 537544), (504, 508747), (522, 491204), (609, 421032), (636, 403158), (662, 387324), (696, 368403), (742, 345564), (812, 315774), (954, 268772), (993, 258216), (1044, 245602), (1113, 230376), (1218, 210516), (1272, 201579), (1324, 193662), (1484, 172782), (1537, 166824), (1624, 157887), (1827, 140344), (1908, 134386), (1986, 129108), (2088, 122801), (2226, 115188), (2317, 110664), (2436, 105258), (2648, 96831), (2968, 86391), (2979, 86072), (3074, 83412), (3339, 76792), (3654, 70172), (3816, 67193), (3972, 64554), (4452, 57594), (4611, 55608), (4634, 55332), (4872, 52629), (5958, 43036), (6148, 41706), (6678, 38396), (6951, 36888), (7308, 35086), (7944, 32277), (8904, 28797), (9222, 27804), (9268, 27666), (9599, 26712), (10759, 23832), (11916, 21518), (12296, 20853), (13356, 19198), (13833, 18536), (13902, 18444), (14616, 17543)]