12201640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2521}}^1$

素因数の和:2554

約数の個数: 48

約数和(自身を含む): 30188340

約数和(自身を除く): 17986700

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 2521, 4840, 5042, 10084, 12605, 20168, 25210, 27731, 50420, 55462, 100840, 110924, 138655, 221848, 277310, 305041, 554620, 610082, 1109240, 1220164, 1525205, 2440328, 3050410, 6100820, 12201640]

約数ペア:

[(1, 12201640), (2, 6100820), (4, 3050410), (5, 2440328), (8, 1525205), (10, 1220164), (11, 1109240), (20, 610082), (22, 554620), (40, 305041), (44, 277310), (55, 221848), (88, 138655), (110, 110924), (121, 100840), (220, 55462), (242, 50420), (440, 27731), (484, 25210), (605, 20168), (968, 12605), (1210, 10084), (2420, 5042), (2521, 4840)]