80504840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11909}}^1$

素因数の和:11946

約数の個数: 48

約数和(自身を含む): 196157700

約数和(自身を除く): 115652860

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 11909, 23818, 47636, 59545, 95272, 119090, 154817, 238180, 309634, 476360, 619268, 774085, 1238536, 1548170, 2012621, 3096340, 4025242, 6192680, 8050484, 10063105, 16100968, 20126210, 40252420, 80504840]

約数ペア:

[(1, 80504840), (2, 40252420), (4, 20126210), (5, 16100968), (8, 10063105), (10, 8050484), (13, 6192680), (20, 4025242), (26, 3096340), (40, 2012621), (52, 1548170), (65, 1238536), (104, 774085), (130, 619268), (169, 476360), (260, 309634), (338, 238180), (520, 154817), (676, 119090), (845, 95272), (1352, 59545), (1690, 47636), (3380, 23818), (6760, 11909)]