9719740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 21498624

約数和(自身を除く): 11778884

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 257, 305, 310, 514, 610, 620, 1028, 1220, 1285, 1891, 2570, 3782, 5140, 7564, 7967, 9455, 15677, 15934, 18910, 31354, 31868, 37820, 39835, 62708, 78385, 79670, 156770, 159340, 313540, 485987, 971974, 1943948, 2429935, 4859870, 9719740]

約数ペア:

[(1, 9719740), (2, 4859870), (4, 2429935), (5, 1943948), (10, 971974), (20, 485987), (31, 313540), (61, 159340), (62, 156770), (122, 79670), (124, 78385), (155, 62708), (244, 39835), (257, 37820), (305, 31868), (310, 31354), (514, 18910), (610, 15934), (620, 15677), (1028, 9455), (1220, 7967), (1285, 7564), (1891, 5140), (2570, 3782)]