15820960

素因数分解:

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

素因数の和:1697

約数の個数: 48

約数和(自身を含む): 38013192

約数和(自身を除く): 22192232

約数列:

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

約数ペア:

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