4006049360

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{101987}}^1$

素因数の和:102491

約数の個数: 40

約数和(自身を含む): 9333125856

約数和(自身を除く): 5327076496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 19640, 39280, 101987, 203974, 407948, 509935, 815896, 1019870, 1631792, 2039740, 4079480, 8158960, 50075617, 100151234, 200302468, 250378085, 400604936, 500756170, 801209872, 1001512340, 2003024680, 4006049360]

約数ペア:

[(1, 4006049360), (2, 2003024680), (4, 1001512340), (5, 801209872), (8, 500756170), (10, 400604936), (16, 250378085), (20, 200302468), (40, 100151234), (80, 50075617), (491, 8158960), (982, 4079480), (1964, 2039740), (2455, 1631792), (3928, 1019870), (4910, 815896), (7856, 509935), (9820, 407948), (19640, 203974), (39280, 101987)]