985212520

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{63317}}^1$

素因数の和:63717

約数の個数: 32

約数和(自身を含む): 2222461800

約数和(自身を除く): 1237249280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 15560, 63317, 126634, 253268, 316585, 506536, 633170, 1266340, 2532680, 24630313, 49260626, 98521252, 123151565, 197042504, 246303130, 492606260, 985212520]

約数ペア:

[(1, 985212520), (2, 492606260), (4, 246303130), (5, 197042504), (8, 123151565), (10, 98521252), (20, 49260626), (40, 24630313), (389, 2532680), (778, 1266340), (1556, 633170), (1945, 506536), (3112, 316585), (3890, 253268), (7780, 126634), (15560, 63317)]