401039312

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{613}}^1\times {\mathrm{1319}}^1$

素因数の和:1971

約数の個数: 40

約数和(自身を含む): 803996160

約数和(自身を除く): 402956848

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 613, 1226, 1319, 2452, 2638, 4904, 5276, 9808, 10552, 19003, 21104, 38006, 40889, 76012, 81778, 152024, 163556, 304048, 327112, 654224, 808547, 1617094, 3234188, 6468376, 12936752, 25064957, 50129914, 100259828, 200519656, 401039312]

約数ペア:

[(1, 401039312), (2, 200519656), (4, 100259828), (8, 50129914), (16, 25064957), (31, 12936752), (62, 6468376), (124, 3234188), (248, 1617094), (496, 808547), (613, 654224), (1226, 327112), (1319, 304048), (2452, 163556), (2638, 152024), (4904, 81778), (5276, 76012), (9808, 40889), (10552, 38006), (19003, 21104)]