640333260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{593}}^1\times {\mathrm{857}}^1$

素因数の和:1472

約数の個数: 144

約数和(自身を含む): 2226159936

約数和(自身を除く): 1585826676

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 593, 630, 857, 1186, 1260, 1714, 1779, 2372, 2571, 2965, 3428, 3558, 4151, 4285, 5142, 5337, 5930, 5999, 7116, 7713, 8302, 8570, 8895, 10284, 10674, 11860, 11998, 12453, 12855, 15426, 16604, 17140, 17790, 17997, 20755, 21348, 23996, 24906, 25710, 26685, 29995, 30852, 35580, 35994, 37359, 38565, 41510, 49812, 51420, 53370, 53991, 59990, 62265, 71988, 74718, 77130, 83020, 89985, 106740, 107982, 119980, 124530, 149436, 154260, 179970, 186795, 215964, 249060, 269955, 359940, 373590, 508201, 539910, 747180, 1016402, 1079820, 1524603, 2032804, 2541005, 3049206, 3557407, 4573809, 5082010, 6098412, 7114814, 7623015, 9147618, 10164020, 10672221, 14229628, 15246030, 17787035, 18295236, 21344442, 22869045, 30492060, 32016663, 35574070, 42688884, 45738090, 53361105, 64033326, 71148140, 91476180, 106722210, 128066652, 160083315, 213444420, 320166630, 640333260]

約数ペア:

[(1, 640333260), (2, 320166630), (3, 213444420), (4, 160083315), (5, 128066652), (6, 106722210), (7, 91476180), (9, 71148140), (10, 64033326), (12, 53361105), (14, 45738090), (15, 42688884), (18, 35574070), (20, 32016663), (21, 30492060), (28, 22869045), (30, 21344442), (35, 18295236), (36, 17787035), (42, 15246030), (45, 14229628), (60, 10672221), (63, 10164020), (70, 9147618), (84, 7623015), (90, 7114814), (105, 6098412), (126, 5082010), (140, 4573809), (180, 3557407), (210, 3049206), (252, 2541005), (315, 2032804), (420, 1524603), (593, 1079820), (630, 1016402), (857, 747180), (1186, 539910), (1260, 508201), (1714, 373590), (1779, 359940), (2372, 269955), (2571, 249060), (2965, 215964), (3428, 186795), (3558, 179970), (4151, 154260), (4285, 149436), (5142, 124530), (5337, 119980), (5930, 107982), (5999, 106740), (7116, 89985), (7713, 83020), (8302, 77130), (8570, 74718), (8895, 71988), (10284, 62265), (10674, 59990), (11860, 53991), (11998, 53370), (12453, 51420), (12855, 49812), (15426, 41510), (16604, 38565), (17140, 37359), (17790, 35994), (17997, 35580), (20755, 30852), (21348, 29995), (23996, 26685), (24906, 25710)]