420821888

素因数分解:

$2^7\times {\mathrm{439}}^1\times {\mathrm{7489}}^1$

素因数の和:7942

約数の個数: 32

約数和(自身を含む): 840378000

約数和(自身を除く): 419556112

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 439, 878, 1756, 3512, 7024, 7489, 14048, 14978, 28096, 29956, 56192, 59912, 119824, 239648, 479296, 958592, 3287671, 6575342, 13150684, 26301368, 52602736, 105205472, 210410944, 420821888]

約数ペア:

[(1, 420821888), (2, 210410944), (4, 105205472), (8, 52602736), (16, 26301368), (32, 13150684), (64, 6575342), (128, 3287671), (439, 958592), (878, 479296), (1756, 239648), (3512, 119824), (7024, 59912), (7489, 56192), (14048, 29956), (14978, 28096)]