638043960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{22247}}^1$

素因数の和:22500

約数の個数: 64

約数和(自身を含む): 1922227200

約数和(自身を除く): 1284183240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 717, 956, 1195, 1434, 1912, 2390, 2868, 3585, 4780, 5736, 7170, 9560, 14340, 22247, 28680, 44494, 66741, 88988, 111235, 133482, 177976, 222470, 266964, 333705, 444940, 533928, 667410, 889880, 1334820, 2669640, 5317033, 10634066, 15951099, 21268132, 26585165, 31902198, 42536264, 53170330, 63804396, 79755495, 106340660, 127608792, 159510990, 212681320, 319021980, 638043960]

約数ペア:

[(1, 638043960), (2, 319021980), (3, 212681320), (4, 159510990), (5, 127608792), (6, 106340660), (8, 79755495), (10, 63804396), (12, 53170330), (15, 42536264), (20, 31902198), (24, 26585165), (30, 21268132), (40, 15951099), (60, 10634066), (120, 5317033), (239, 2669640), (478, 1334820), (717, 889880), (956, 667410), (1195, 533928), (1434, 444940), (1912, 333705), (2390, 266964), (2868, 222470), (3585, 177976), (4780, 133482), (5736, 111235), (7170, 88988), (9560, 66741), (14340, 44494), (22247, 28680)]