1685241520

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{81967}}^1$

素因数の和:82237

約数の個数: 40

約数和(自身を含む): 3933480384

約数和(自身を除く): 2248238864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 81967, 163934, 327868, 409835, 655736, 819670, 1311472, 1639340, 3278680, 6557360, 21065519, 42131038, 84262076, 105327595, 168524152, 210655190, 337048304, 421310380, 842620760, 1685241520]

約数ペア:

[(1, 1685241520), (2, 842620760), (4, 421310380), (5, 337048304), (8, 210655190), (10, 168524152), (16, 105327595), (20, 84262076), (40, 42131038), (80, 21065519), (257, 6557360), (514, 3278680), (1028, 1639340), (1285, 1311472), (2056, 819670), (2570, 655736), (4112, 409835), (5140, 327868), (10280, 163934), (20560, 81967)]