1640720270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{105107}}^1$

素因数の和:105344

約数の個数: 32

約数和(自身を含む): 3390363648

約数和(自身を除く): 1749643378

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 223, 446, 1115, 1561, 2230, 3122, 7805, 15610, 105107, 210214, 525535, 735749, 1051070, 1471498, 3678745, 7357490, 23438861, 46877722, 117194305, 164072027, 234388610, 328144054, 820360135, 1640720270]

約数ペア:

[(1, 1640720270), (2, 820360135), (5, 328144054), (7, 234388610), (10, 164072027), (14, 117194305), (35, 46877722), (70, 23438861), (223, 7357490), (446, 3678745), (1115, 1471498), (1561, 1051070), (2230, 735749), (3122, 525535), (7805, 210214), (15610, 105107)]