81626940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50387}}^1$

素因数の和:50408

約数の個数: 60

約数和(自身を含む): 256071816

約数和(自身を除く): 174444876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 50387, 100774, 151161, 201548, 251935, 302322, 453483, 503870, 604644, 755805, 906966, 1007740, 1360449, 1511610, 1813932, 2267415, 2720898, 3023220, 4081347, 4534830, 5441796, 6802245, 8162694, 9069660, 13604490, 16325388, 20406735, 27208980, 40813470, 81626940]

約数ペア:

[(1, 81626940), (2, 40813470), (3, 27208980), (4, 20406735), (5, 16325388), (6, 13604490), (9, 9069660), (10, 8162694), (12, 6802245), (15, 5441796), (18, 4534830), (20, 4081347), (27, 3023220), (30, 2720898), (36, 2267415), (45, 1813932), (54, 1511610), (60, 1360449), (81, 1007740), (90, 906966), (108, 755805), (135, 604644), (162, 503870), (180, 453483), (270, 302322), (324, 251935), (405, 201548), (540, 151161), (810, 100774), (1620, 50387)]