211404380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5309}}^1$

素因数の和:5510

約数の個数: 48

約数和(自身を含む): 487075680

約数和(自身を除く): 275671300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3620, 3982, 5309, 7964, 9955, 10618, 19910, 21236, 26545, 39820, 53090, 58399, 106180, 116798, 233596, 291995, 583990, 960929, 1167980, 1921858, 3843716, 4804645, 9609290, 10570219, 19218580, 21140438, 42280876, 52851095, 105702190, 211404380]

約数ペア:

[(1, 211404380), (2, 105702190), (4, 52851095), (5, 42280876), (10, 21140438), (11, 19218580), (20, 10570219), (22, 9609290), (44, 4804645), (55, 3843716), (110, 1921858), (181, 1167980), (220, 960929), (362, 583990), (724, 291995), (905, 233596), (1810, 116798), (1991, 106180), (3620, 58399), (3982, 53090), (5309, 39820), (7964, 26545), (9955, 21236), (10618, 19910)]