638151488

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{683}}^1\times {\mathrm{1123}}^1$

素因数の和:1831

約数の個数: 56

約数和(自身を含む): 1366954848

約数和(自身を除く): 728803360

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 683, 832, 1123, 1366, 2246, 2732, 4492, 5464, 8879, 8984, 10928, 14599, 17758, 17968, 21856, 29198, 35516, 35936, 43712, 58396, 71032, 71872, 116792, 142064, 233584, 284128, 467168, 568256, 767009, 934336, 1534018, 3068036, 6136072, 9971117, 12272144, 19942234, 24544288, 39884468, 49088576, 79768936, 159537872, 319075744, 638151488]

約数ペア:

[(1, 638151488), (2, 319075744), (4, 159537872), (8, 79768936), (13, 49088576), (16, 39884468), (26, 24544288), (32, 19942234), (52, 12272144), (64, 9971117), (104, 6136072), (208, 3068036), (416, 1534018), (683, 934336), (832, 767009), (1123, 568256), (1366, 467168), (2246, 284128), (2732, 233584), (4492, 142064), (5464, 116792), (8879, 71872), (8984, 71032), (10928, 58396), (14599, 43712), (17758, 35936), (17968, 35516), (21856, 29198)]