20837512

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 43953840

約数和(自身を除く): 23116328

約数列:

[1, 2, 4, 8, 17, 34, 37, 41, 68, 74, 82, 101, 136, 148, 164, 202, 296, 328, 404, 629, 697, 808, 1258, 1394, 1517, 1717, 2516, 2788, 3034, 3434, 3737, 4141, 5032, 5576, 6068, 6868, 7474, 8282, 12136, 13736, 14948, 16564, 25789, 29896, 33128, 51578, 63529, 70397, 103156, 127058, 140794, 153217, 206312, 254116, 281588, 306434, 508232, 563176, 612868, 1225736, 2604689, 5209378, 10418756, 20837512]

約数ペア:

[(1, 20837512), (2, 10418756), (4, 5209378), (8, 2604689), (17, 1225736), (34, 612868), (37, 563176), (41, 508232), (68, 306434), (74, 281588), (82, 254116), (101, 206312), (136, 153217), (148, 140794), (164, 127058), (202, 103156), (296, 70397), (328, 63529), (404, 51578), (629, 33128), (697, 29896), (808, 25789), (1258, 16564), (1394, 14948), (1517, 13736), (1717, 12136), (2516, 8282), (2788, 7474), (3034, 6868), (3434, 6068), (3737, 5576), (4141, 5032)]