1638267720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{290473}}^1$

素因数の和:290534

約数の個数: 64

約数和(自身を含む): 5019390720

約数和(自身を除く): 3381123000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 5640, 290473, 580946, 871419, 1161892, 1452365, 1742838, 2323784, 2904730, 3485676, 4357095, 5809460, 6971352, 8714190, 11618920, 13652231, 17428380, 27304462, 34856760, 40956693, 54608924, 68261155, 81913386, 109217848, 136522310, 163826772, 204783465, 273044620, 327653544, 409566930, 546089240, 819133860, 1638267720]

約数ペア:

[(1, 1638267720), (2, 819133860), (3, 546089240), (4, 409566930), (5, 327653544), (6, 273044620), (8, 204783465), (10, 163826772), (12, 136522310), (15, 109217848), (20, 81913386), (24, 68261155), (30, 54608924), (40, 40956693), (47, 34856760), (60, 27304462), (94, 17428380), (120, 13652231), (141, 11618920), (188, 8714190), (235, 6971352), (282, 5809460), (376, 4357095), (470, 3485676), (564, 2904730), (705, 2323784), (940, 1742838), (1128, 1452365), (1410, 1161892), (1880, 871419), (2820, 580946), (5640, 290473)]