639647088

素因数分解:

$2^4\times 3^1\times {\mathrm{1997}}^1\times {\mathrm{6673}}^1$

素因数の和:8681

約数の個数: 40

約数和(自身を含む): 1653496848

約数和(自身を除く): 1013849760

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1997, 3994, 5991, 6673, 7988, 11982, 13346, 15976, 20019, 23964, 26692, 31952, 40038, 47928, 53384, 80076, 95856, 106768, 160152, 320304, 13325981, 26651962, 39977943, 53303924, 79955886, 106607848, 159911772, 213215696, 319823544, 639647088]

約数ペア:

[(1, 639647088), (2, 319823544), (3, 213215696), (4, 159911772), (6, 106607848), (8, 79955886), (12, 53303924), (16, 39977943), (24, 26651962), (48, 13325981), (1997, 320304), (3994, 160152), (5991, 106768), (6673, 95856), (7988, 80076), (11982, 53384), (13346, 47928), (15976, 40038), (20019, 31952), (23964, 26692)]