81834940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21881}}^1$

素因数の和:21918

約数の個数: 48

約数和(自身を含む): 198513504

約数和(自身を除く): 116678564

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 21881, 43762, 87524, 109405, 218810, 240691, 371977, 437620, 481382, 743954, 962764, 1203455, 1487908, 1859885, 2406910, 3719770, 4091747, 4813820, 7439540, 8183494, 16366988, 20458735, 40917470, 81834940]

約数ペア:

[(1, 81834940), (2, 40917470), (4, 20458735), (5, 16366988), (10, 8183494), (11, 7439540), (17, 4813820), (20, 4091747), (22, 3719770), (34, 2406910), (44, 1859885), (55, 1487908), (68, 1203455), (85, 962764), (110, 743954), (170, 481382), (187, 437620), (220, 371977), (340, 240691), (374, 218810), (748, 109405), (935, 87524), (1870, 43762), (3740, 21881)]