20731860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{773}}^1$

素因数の和:937

約数の個数: 72

約数和(自身を含む): 63390600

約数和(自身を除く): 42658740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 773, 894, 1341, 1490, 1546, 1788, 2235, 2319, 2682, 2980, 3092, 3865, 4470, 4638, 5364, 6705, 6957, 7730, 8940, 9276, 11595, 13410, 13914, 15460, 23190, 26820, 27828, 34785, 46380, 69570, 115177, 139140, 230354, 345531, 460708, 575885, 691062, 1036593, 1151770, 1382124, 1727655, 2073186, 2303540, 3455310, 4146372, 5182965, 6910620, 10365930, 20731860]

約数ペア:

[(1, 20731860), (2, 10365930), (3, 6910620), (4, 5182965), (5, 4146372), (6, 3455310), (9, 2303540), (10, 2073186), (12, 1727655), (15, 1382124), (18, 1151770), (20, 1036593), (30, 691062), (36, 575885), (45, 460708), (60, 345531), (90, 230354), (149, 139140), (180, 115177), (298, 69570), (447, 46380), (596, 34785), (745, 27828), (773, 26820), (894, 23190), (1341, 15460), (1490, 13914), (1546, 13410), (1788, 11595), (2235, 9276), (2319, 8940), (2682, 7730), (2980, 6957), (3092, 6705), (3865, 5364), (4470, 4638)]