256422348

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{223}}^1$

素因数の和:275

約数の個数: 216

約数和(自身を含む): 835580928

約数和(自身を除く): 579158580

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 52, 54, 63, 78, 81, 84, 91, 108, 117, 126, 156, 162, 169, 182, 189, 223, 234, 243, 252, 273, 324, 338, 351, 364, 378, 446, 468, 486, 507, 546, 567, 669, 676, 702, 756, 819, 892, 972, 1014, 1053, 1092, 1134, 1183, 1338, 1404, 1521, 1561, 1638, 1701, 2007, 2028, 2106, 2268, 2366, 2457, 2676, 2899, 3042, 3122, 3159, 3276, 3402, 3549, 4014, 4212, 4563, 4683, 4732, 4914, 5798, 6021, 6084, 6244, 6318, 6804, 7098, 7371, 8028, 8697, 9126, 9366, 9828, 10647, 11596, 12042, 12636, 13689, 14049, 14196, 14742, 17394, 18063, 18252, 18732, 20293, 21294, 22113, 24084, 26091, 27378, 28098, 29484, 31941, 34788, 36126, 37687, 40586, 41067, 42147, 42588, 44226, 52182, 54189, 54756, 56196, 60879, 63882, 72252, 75374, 78273, 81172, 82134, 84294, 88452, 95823, 104364, 108378, 113061, 121758, 126441, 127764, 150748, 156546, 164268, 168588, 182637, 191646, 216756, 226122, 234819, 243516, 252882, 263809, 287469, 313092, 339183, 365274, 379323, 383292, 452244, 469638, 505764, 527618, 547911, 574938, 678366, 704457, 730548, 758646, 791427, 939276, 1017549, 1055236, 1095822, 1149876, 1356732, 1408914, 1517292, 1582854, 1643733, 2035098, 2191644, 2374281, 2817828, 3052647, 3165708, 3287466, 4070196, 4748562, 4931199, 6105294, 6574932, 7122843, 9157941, 9497124, 9862398, 12210588, 14245686, 18315882, 19724796, 21368529, 28491372, 36631764, 42737058, 64105587, 85474116, 128211174, 256422348]

約数ペア:

[(1, 256422348), (2, 128211174), (3, 85474116), (4, 64105587), (6, 42737058), (7, 36631764), (9, 28491372), (12, 21368529), (13, 19724796), (14, 18315882), (18, 14245686), (21, 12210588), (26, 9862398), (27, 9497124), (28, 9157941), (36, 7122843), (39, 6574932), (42, 6105294), (52, 4931199), (54, 4748562), (63, 4070196), (78, 3287466), (81, 3165708), (84, 3052647), (91, 2817828), (108, 2374281), (117, 2191644), (126, 2035098), (156, 1643733), (162, 1582854), (169, 1517292), (182, 1408914), (189, 1356732), (223, 1149876), (234, 1095822), (243, 1055236), (252, 1017549), (273, 939276), (324, 791427), (338, 758646), (351, 730548), (364, 704457), (378, 678366), (446, 574938), (468, 547911), (486, 527618), (507, 505764), (546, 469638), (567, 452244), (669, 383292), (676, 379323), (702, 365274), (756, 339183), (819, 313092), (892, 287469), (972, 263809), (1014, 252882), (1053, 243516), (1092, 234819), (1134, 226122), (1183, 216756), (1338, 191646), (1404, 182637), (1521, 168588), (1561, 164268), (1638, 156546), (1701, 150748), (2007, 127764), (2028, 126441), (2106, 121758), (2268, 113061), (2366, 108378), (2457, 104364), (2676, 95823), (2899, 88452), (3042, 84294), (3122, 82134), (3159, 81172), (3276, 78273), (3402, 75374), (3549, 72252), (4014, 63882), (4212, 60879), (4563, 56196), (4683, 54756), (4732, 54189), (4914, 52182), (5798, 44226), (6021, 42588), (6084, 42147), (6244, 41067), (6318, 40586), (6804, 37687), (7098, 36126), (7371, 34788), (8028, 31941), (8697, 29484), (9126, 28098), (9366, 27378), (9828, 26091), (10647, 24084), (11596, 22113), (12042, 21294), (12636, 20293), (13689, 18732), (14049, 18252), (14196, 18063), (14742, 17394)]