640506384

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{635423}}^1$

素因数の和:635444

約数の個数: 60

約数和(自身を含む): 2048606976

約数和(自身を除く): 1408100592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 635423, 1270846, 1906269, 2541692, 3812538, 4447961, 5083384, 5718807, 7625076, 8895922, 10166768, 11437614, 13343883, 15250152, 17791844, 22875228, 26687766, 30500304, 35583688, 40031649, 45750456, 53375532, 71167376, 80063298, 91500912, 106751064, 160126596, 213502128, 320253192, 640506384]

約数ペア:

[(1, 640506384), (2, 320253192), (3, 213502128), (4, 160126596), (6, 106751064), (7, 91500912), (8, 80063298), (9, 71167376), (12, 53375532), (14, 45750456), (16, 40031649), (18, 35583688), (21, 30500304), (24, 26687766), (28, 22875228), (36, 17791844), (42, 15250152), (48, 13343883), (56, 11437614), (63, 10166768), (72, 8895922), (84, 7625076), (112, 5718807), (126, 5083384), (144, 4447961), (168, 3812538), (252, 2541692), (336, 1906269), (504, 1270846), (1008, 635423)]