31382720

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{971}}^1$

素因数の和:1089

約数の個数: 56

約数和(自身を含む): 75547728

約数和(自身を除く): 44165008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 971, 1010, 1616, 1942, 2020, 3232, 3884, 4040, 4855, 6464, 7768, 8080, 9710, 15536, 16160, 19420, 31072, 32320, 38840, 62144, 77680, 98071, 155360, 196142, 310720, 392284, 490355, 784568, 980710, 1569136, 1961420, 3138272, 3922840, 6276544, 7845680, 15691360, 31382720]

約数ペア:

[(1, 31382720), (2, 15691360), (4, 7845680), (5, 6276544), (8, 3922840), (10, 3138272), (16, 1961420), (20, 1569136), (32, 980710), (40, 784568), (64, 490355), (80, 392284), (101, 310720), (160, 196142), (202, 155360), (320, 98071), (404, 77680), (505, 62144), (808, 38840), (971, 32320), (1010, 31072), (1616, 19420), (1942, 16160), (2020, 15536), (3232, 9710), (3884, 8080), (4040, 7768), (4855, 6464)]