28709440

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1229}}^1$

素因数の和:1319

約数の個数: 56

約数和(自身を含む): 69357240

約数和(自身を除く): 40647800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 1168, 1229, 1460, 2336, 2458, 2920, 4672, 4916, 5840, 6145, 9832, 11680, 12290, 19664, 23360, 24580, 39328, 49160, 78656, 89717, 98320, 179434, 196640, 358868, 393280, 448585, 717736, 897170, 1435472, 1794340, 2870944, 3588680, 5741888, 7177360, 14354720, 28709440]

約数ペア:

[(1, 28709440), (2, 14354720), (4, 7177360), (5, 5741888), (8, 3588680), (10, 2870944), (16, 1794340), (20, 1435472), (32, 897170), (40, 717736), (64, 448585), (73, 393280), (80, 358868), (146, 196640), (160, 179434), (292, 98320), (320, 89717), (365, 78656), (584, 49160), (730, 39328), (1168, 24580), (1229, 23360), (1460, 19664), (2336, 12290), (2458, 11680), (2920, 9832), (4672, 6145), (4916, 5840)]