128439740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{44909}}^1$

素因数の和:44942

約数の個数: 48

約数和(自身を含む): 316884960

約数和(自身を除く): 188445220

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 44909, 89818, 179636, 224545, 449090, 493999, 583817, 898180, 987998, 1167634, 1975996, 2335268, 2469995, 2919085, 4939990, 5838170, 6421987, 9879980, 11676340, 12843974, 25687948, 32109935, 64219870, 128439740]

約数ペア:

[(1, 128439740), (2, 64219870), (4, 32109935), (5, 25687948), (10, 12843974), (11, 11676340), (13, 9879980), (20, 6421987), (22, 5838170), (26, 4939990), (44, 2919085), (52, 2469995), (55, 2335268), (65, 1975996), (110, 1167634), (130, 987998), (143, 898180), (220, 583817), (260, 493999), (286, 449090), (572, 224545), (715, 179636), (1430, 89818), (2860, 44909)]