408029680

素因数分解:

$2^4\times 5^1\times {\mathrm{5100371}}^1$

素因数の和:5100384

約数の個数: 20

約数和(自身を含む): 948669192

約数和(自身を除く): 540639512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5100371, 10200742, 20401484, 25501855, 40802968, 51003710, 81605936, 102007420, 204014840, 408029680]

約数ペア:

[(1, 408029680), (2, 204014840), (4, 102007420), (5, 81605936), (8, 51003710), (10, 40802968), (16, 25501855), (20, 20401484), (40, 10200742), (80, 5100371)]