31641920

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1621}}^1$

素因数の和:1699

約数の個数: 56

約数和(自身を含む): 76629768

約数和(自身を除く): 44987848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1621, 1952, 2440, 3242, 3904, 4880, 6484, 8105, 9760, 12968, 16210, 19520, 25936, 32420, 51872, 64840, 98881, 103744, 129680, 197762, 259360, 395524, 494405, 518720, 791048, 988810, 1582096, 1977620, 3164192, 3955240, 6328384, 7910480, 15820960, 31641920]

約数ペア:

[(1, 31641920), (2, 15820960), (4, 7910480), (5, 6328384), (8, 3955240), (10, 3164192), (16, 1977620), (20, 1582096), (32, 988810), (40, 791048), (61, 518720), (64, 494405), (80, 395524), (122, 259360), (160, 197762), (244, 129680), (305, 103744), (320, 98881), (488, 64840), (610, 51872), (976, 32420), (1220, 25936), (1621, 19520), (1952, 16210), (2440, 12968), (3242, 9760), (3904, 8105), (4880, 6484)]