255623120

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{19603}}^1$

素因数の和:19779

約数の個数: 40

約数和(自身を含む): 598000416

約数和(自身を除く): 342377296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 19603, 39206, 78412, 98015, 156824, 196030, 313648, 392060, 784120, 1568240, 3195289, 6390578, 12781156, 15976445, 25562312, 31952890, 51124624, 63905780, 127811560, 255623120]

約数ペア:

[(1, 255623120), (2, 127811560), (4, 63905780), (5, 51124624), (8, 31952890), (10, 25562312), (16, 15976445), (20, 12781156), (40, 6390578), (80, 3195289), (163, 1568240), (326, 784120), (652, 392060), (815, 313648), (1304, 196030), (1630, 156824), (2608, 98015), (3260, 78412), (6520, 39206), (13040, 19603)]