256615424

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:591

約数の個数: 88

約数和(自身を含む): 568460088

約数和(自身を除く): 311844664

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 64, 74, 104, 128, 148, 208, 256, 296, 416, 481, 512, 521, 592, 832, 962, 1024, 1042, 1184, 1664, 1924, 2084, 2368, 3328, 3848, 4168, 4736, 6656, 6773, 7696, 8336, 9472, 13312, 13546, 15392, 16672, 18944, 19277, 27092, 30784, 33344, 37888, 38554, 54184, 61568, 66688, 77108, 108368, 123136, 133376, 154216, 216736, 246272, 250601, 266752, 308432, 433472, 492544, 501202, 533504, 616864, 866944, 1002404, 1233728, 1733888, 2004808, 2467456, 3467776, 4009616, 4934912, 6935552, 8019232, 9869824, 16038464, 19739648, 32076928, 64153856, 128307712, 256615424]

約数ペア:

[(1, 256615424), (2, 128307712), (4, 64153856), (8, 32076928), (13, 19739648), (16, 16038464), (26, 9869824), (32, 8019232), (37, 6935552), (52, 4934912), (64, 4009616), (74, 3467776), (104, 2467456), (128, 2004808), (148, 1733888), (208, 1233728), (256, 1002404), (296, 866944), (416, 616864), (481, 533504), (512, 501202), (521, 492544), (592, 433472), (832, 308432), (962, 266752), (1024, 250601), (1042, 246272), (1184, 216736), (1664, 154216), (1924, 133376), (2084, 123136), (2368, 108368), (3328, 77108), (3848, 66688), (4168, 61568), (4736, 54184), (6656, 38554), (6773, 37888), (7696, 33344), (8336, 30784), (9472, 27092), (13312, 19277), (13546, 18944), (15392, 16672)]