774640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 1883808

約数和(自身を除く): 1109168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 421, 460, 842, 920, 1684, 1840, 2105, 3368, 4210, 6736, 8420, 9683, 16840, 19366, 33680, 38732, 48415, 77464, 96830, 154928, 193660, 387320, 774640]

約数ペア:

[(1, 774640), (2, 387320), (4, 193660), (5, 154928), (8, 96830), (10, 77464), (16, 48415), (20, 38732), (23, 33680), (40, 19366), (46, 16840), (80, 9683), (92, 8420), (115, 6736), (184, 4210), (230, 3368), (368, 2105), (421, 1840), (460, 1684), (842, 920)]