278380528

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{173}}^1\times {\mathrm{617}}^1$

素因数の和:961

約数の個数: 40

約数和(自身を含む): 546692688

約数和(自身を除く): 268312160

約数列:

[1, 2, 4, 8, 16, 163, 173, 326, 346, 617, 652, 692, 1234, 1304, 1384, 2468, 2608, 2768, 4936, 9872, 28199, 56398, 100571, 106741, 112796, 201142, 213482, 225592, 402284, 426964, 451184, 804568, 853928, 1609136, 1707856, 17398783, 34797566, 69595132, 139190264, 278380528]

約数ペア:

[(1, 278380528), (2, 139190264), (4, 69595132), (8, 34797566), (16, 17398783), (163, 1707856), (173, 1609136), (326, 853928), (346, 804568), (617, 451184), (652, 426964), (692, 402284), (1234, 225592), (1304, 213482), (1384, 201142), (2468, 112796), (2608, 106741), (2768, 100571), (4936, 56398), (9872, 28199)]