640359960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113539}}^1$

素因数の和:113600

約数の個数: 64

約数和(自身を含む): 1961971200

約数和(自身を除く): 1321611240

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, 113539, 227078, 340617, 454156, 567695, 681234, 908312, 1135390, 1362468, 1703085, 2270780, 2724936, 3406170, 4541560, 5336333, 6812340, 10672666, 13624680, 16008999, 21345332, 26681665, 32017998, 42690664, 53363330, 64035996, 80044995, 106726660, 128071992, 160089990, 213453320, 320179980, 640359960]

約数ペア:

[(1, 640359960), (2, 320179980), (3, 213453320), (4, 160089990), (5, 128071992), (6, 106726660), (8, 80044995), (10, 64035996), (12, 53363330), (15, 42690664), (20, 32017998), (24, 26681665), (30, 21345332), (40, 16008999), (47, 13624680), (60, 10672666), (94, 6812340), (120, 5336333), (141, 4541560), (188, 3406170), (235, 2724936), (282, 2270780), (376, 1703085), (470, 1362468), (564, 1135390), (705, 908312), (940, 681234), (1128, 567695), (1410, 454156), (1880, 340617), (2820, 227078), (5640, 113539)]