1788996820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{8971}}^1$

素因数の和:9065

約数の個数: 72

約数和(自身を含む): 4137527520

約数和(自身を除く): 2348530700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 169, 236, 260, 295, 338, 590, 676, 767, 845, 1180, 1534, 1690, 3068, 3380, 3835, 7670, 8971, 9971, 15340, 17942, 19942, 35884, 39884, 44855, 49855, 89710, 99710, 116623, 179420, 199420, 233246, 466492, 529289, 583115, 1058578, 1166230, 1516099, 2117156, 2332460, 2646445, 3032198, 5292890, 6064396, 6880757, 7580495, 10585780, 13761514, 15160990, 27523028, 30321980, 34403785, 68807570, 89449841, 137615140, 178899682, 357799364, 447249205, 894498410, 1788996820]

約数ペア:

[(1, 1788996820), (2, 894498410), (4, 447249205), (5, 357799364), (10, 178899682), (13, 137615140), (20, 89449841), (26, 68807570), (52, 34403785), (59, 30321980), (65, 27523028), (118, 15160990), (130, 13761514), (169, 10585780), (236, 7580495), (260, 6880757), (295, 6064396), (338, 5292890), (590, 3032198), (676, 2646445), (767, 2332460), (845, 2117156), (1180, 1516099), (1534, 1166230), (1690, 1058578), (3068, 583115), (3380, 529289), (3835, 466492), (7670, 233246), (8971, 199420), (9971, 179420), (15340, 116623), (17942, 99710), (19942, 89710), (35884, 49855), (39884, 44855)]