640499520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9397}}^1$

素因数の和:9488

約数の個数: 112

約数和(自身を含む): 2062447488

約数和(自身を除く): 1421947968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 142, 160, 192, 213, 240, 284, 320, 355, 426, 480, 568, 710, 852, 960, 1065, 1136, 1420, 1704, 2130, 2272, 2840, 3408, 4260, 4544, 5680, 6816, 8520, 9397, 11360, 13632, 17040, 18794, 22720, 28191, 34080, 37588, 46985, 56382, 68160, 75176, 93970, 112764, 140955, 150352, 187940, 225528, 281910, 300704, 375880, 451056, 563820, 601408, 667187, 751760, 902112, 1127640, 1334374, 1503520, 1804224, 2001561, 2255280, 2668748, 3007040, 3335935, 4003122, 4510560, 5337496, 6671870, 8006244, 9021120, 10007805, 10674992, 13343740, 16012488, 20015610, 21349984, 26687480, 32024976, 40031220, 42699968, 53374960, 64049952, 80062440, 106749920, 128099904, 160124880, 213499840, 320249760, 640499520]

約数ペア:

[(1, 640499520), (2, 320249760), (3, 213499840), (4, 160124880), (5, 128099904), (6, 106749920), (8, 80062440), (10, 64049952), (12, 53374960), (15, 42699968), (16, 40031220), (20, 32024976), (24, 26687480), (30, 21349984), (32, 20015610), (40, 16012488), (48, 13343740), (60, 10674992), (64, 10007805), (71, 9021120), (80, 8006244), (96, 6671870), (120, 5337496), (142, 4510560), (160, 4003122), (192, 3335935), (213, 3007040), (240, 2668748), (284, 2255280), (320, 2001561), (355, 1804224), (426, 1503520), (480, 1334374), (568, 1127640), (710, 902112), (852, 751760), (960, 667187), (1065, 601408), (1136, 563820), (1420, 451056), (1704, 375880), (2130, 300704), (2272, 281910), (2840, 225528), (3408, 187940), (4260, 150352), (4544, 140955), (5680, 112764), (6816, 93970), (8520, 75176), (9397, 68160), (11360, 56382), (13632, 46985), (17040, 37588), (18794, 34080), (22720, 28191)]