252407640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3251}}^1$

素因数の和:3912

約数の個数: 64

約数和(自身を含む): 758626560

約数和(自身を除く): 506218920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 647, 1294, 1941, 2588, 3235, 3251, 3882, 5176, 6470, 6502, 7764, 9705, 9753, 12940, 13004, 15528, 16255, 19410, 19506, 25880, 26008, 32510, 38820, 39012, 48765, 65020, 77640, 78024, 97530, 130040, 195060, 390120, 2103397, 4206794, 6310191, 8413588, 10516985, 12620382, 16827176, 21033970, 25240764, 31550955, 42067940, 50481528, 63101910, 84135880, 126203820, 252407640]

約数ペア:

[(1, 252407640), (2, 126203820), (3, 84135880), (4, 63101910), (5, 50481528), (6, 42067940), (8, 31550955), (10, 25240764), (12, 21033970), (15, 16827176), (20, 12620382), (24, 10516985), (30, 8413588), (40, 6310191), (60, 4206794), (120, 2103397), (647, 390120), (1294, 195060), (1941, 130040), (2588, 97530), (3235, 78024), (3251, 77640), (3882, 65020), (5176, 48765), (6470, 39012), (6502, 38820), (7764, 32510), (9705, 26008), (9753, 25880), (12940, 19506), (13004, 19410), (15528, 16255)]