81587772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{569}}^2$

素因数の和:1155

約数の個数: 54

約数和(自身を含む): 236112968

約数和(自身を除く): 154525196

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 569, 1138, 1707, 2276, 3414, 3983, 5121, 6828, 7966, 10242, 11949, 15932, 20484, 23898, 35847, 47796, 71694, 143388, 323761, 647522, 971283, 1295044, 1942566, 2266327, 2913849, 3885132, 4532654, 5827698, 6798981, 9065308, 11655396, 13597962, 20396943, 27195924, 40793886, 81587772]

約数ペア:

[(1, 81587772), (2, 40793886), (3, 27195924), (4, 20396943), (6, 13597962), (7, 11655396), (9, 9065308), (12, 6798981), (14, 5827698), (18, 4532654), (21, 3885132), (28, 2913849), (36, 2266327), (42, 1942566), (63, 1295044), (84, 971283), (126, 647522), (252, 323761), (569, 143388), (1138, 71694), (1707, 47796), (2276, 35847), (3414, 23898), (3983, 20484), (5121, 15932), (6828, 11949), (7966, 10242)]