20121309990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{773599}}^1$

素因数の和:773646

約数の個数: 72

約数和(自身を含む): 55573876800

約数和(自身を除く): 35452566810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 289, 306, 510, 578, 765, 867, 1445, 1530, 1734, 2601, 2890, 4335, 5202, 8670, 13005, 26010, 773599, 1547198, 2320797, 3867995, 4641594, 6962391, 7735990, 11603985, 13151183, 13924782, 23207970, 26302366, 34811955, 39453549, 65755915, 69623910, 78907098, 118360647, 131511830, 197267745, 223570111, 236721294, 394535490, 447140222, 591803235, 670710333, 1117850555, 1183606470, 1341420666, 2012130999, 2235701110, 3353551665, 4024261998, 6707103330, 10060654995, 20121309990]

約数ペア:

[(1, 20121309990), (2, 10060654995), (3, 6707103330), (5, 4024261998), (6, 3353551665), (9, 2235701110), (10, 2012130999), (15, 1341420666), (17, 1183606470), (18, 1117850555), (30, 670710333), (34, 591803235), (45, 447140222), (51, 394535490), (85, 236721294), (90, 223570111), (102, 197267745), (153, 131511830), (170, 118360647), (255, 78907098), (289, 69623910), (306, 65755915), (510, 39453549), (578, 34811955), (765, 26302366), (867, 23207970), (1445, 13924782), (1530, 13151183), (1734, 11603985), (2601, 7735990), (2890, 6962391), (4335, 4641594), (5202, 3867995), (8670, 2320797), (13005, 1547198), (26010, 773599)]