1990490890

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1\times {\mathrm{6607}}^1$

素因数の和:7302

約数の個数: 32

約数和(自身を含む): 3665378304

約数和(自身を除く): 1674887414

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 641, 1282, 3205, 6410, 6607, 13214, 30127, 33035, 60254, 66070, 150635, 301270, 310529, 621058, 1552645, 3105290, 4235087, 8470174, 21175435, 42350870, 199049089, 398098178, 995245445, 1990490890]

約数ペア:

[(1, 1990490890), (2, 995245445), (5, 398098178), (10, 199049089), (47, 42350870), (94, 21175435), (235, 8470174), (470, 4235087), (641, 3105290), (1282, 1552645), (3205, 621058), (6410, 310529), (6607, 301270), (13214, 150635), (30127, 66070), (33035, 60254)]