20734740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8861}}^1$

素因数の和:8889

約数の個数: 72

約数和(自身を含む): 67741128

約数和(自身を除く): 47006388

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, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8861, 17722, 26583, 35444, 44305, 53166, 79749, 88610, 106332, 115193, 132915, 159498, 177220, 230386, 265830, 318996, 345579, 398745, 460772, 531660, 575965, 691158, 797490, 1036737, 1151930, 1382316, 1594980, 1727895, 2073474, 2303860, 3455790, 4146948, 5183685, 6911580, 10367370, 20734740]

約数ペア:

[(1, 20734740), (2, 10367370), (3, 6911580), (4, 5183685), (5, 4146948), (6, 3455790), (9, 2303860), (10, 2073474), (12, 1727895), (13, 1594980), (15, 1382316), (18, 1151930), (20, 1036737), (26, 797490), (30, 691158), (36, 575965), (39, 531660), (45, 460772), (52, 398745), (60, 345579), (65, 318996), (78, 265830), (90, 230386), (117, 177220), (130, 159498), (156, 132915), (180, 115193), (195, 106332), (234, 88610), (260, 79749), (390, 53166), (468, 44305), (585, 35444), (780, 26583), (1170, 17722), (2340, 8861)]