20107620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{661}}^1$

素因数の和:702

約数の個数: 108

約数和(自身を含む): 66145716

約数和(自身を除く): 46038096

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 661, 676, 780, 845, 1014, 1170, 1322, 1521, 1690, 1983, 2028, 2340, 2535, 2644, 3042, 3305, 3380, 3966, 5070, 5949, 6084, 6610, 7605, 7932, 8593, 9915, 10140, 11898, 13220, 15210, 17186, 19830, 23796, 25779, 29745, 30420, 34372, 39660, 42965, 51558, 59490, 77337, 85930, 103116, 111709, 118980, 128895, 154674, 171860, 223418, 257790, 309348, 335127, 386685, 446836, 515580, 558545, 670254, 773370, 1005381, 1117090, 1340508, 1546740, 1675635, 2010762, 2234180, 3351270, 4021524, 5026905, 6702540, 10053810, 20107620]

約数ペア:

[(1, 20107620), (2, 10053810), (3, 6702540), (4, 5026905), (5, 4021524), (6, 3351270), (9, 2234180), (10, 2010762), (12, 1675635), (13, 1546740), (15, 1340508), (18, 1117090), (20, 1005381), (26, 773370), (30, 670254), (36, 558545), (39, 515580), (45, 446836), (52, 386685), (60, 335127), (65, 309348), (78, 257790), (90, 223418), (117, 171860), (130, 154674), (156, 128895), (169, 118980), (180, 111709), (195, 103116), (234, 85930), (260, 77337), (338, 59490), (390, 51558), (468, 42965), (507, 39660), (585, 34372), (661, 30420), (676, 29745), (780, 25779), (845, 23796), (1014, 19830), (1170, 17186), (1322, 15210), (1521, 13220), (1690, 11898), (1983, 10140), (2028, 9915), (2340, 8593), (2535, 7932), (2644, 7605), (3042, 6610), (3305, 6084), (3380, 5949), (3966, 5070)]