8220380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 20030976

約数和(自身を除く): 11810596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 827, 994, 1420, 1654, 1988, 2485, 3308, 4135, 4970, 5789, 8270, 9940, 11578, 16540, 23156, 28945, 57890, 58717, 115780, 117434, 234868, 293585, 411019, 587170, 822038, 1174340, 1644076, 2055095, 4110190, 8220380]

約数ペア:

[(1, 8220380), (2, 4110190), (4, 2055095), (5, 1644076), (7, 1174340), (10, 822038), (14, 587170), (20, 411019), (28, 293585), (35, 234868), (70, 117434), (71, 115780), (140, 58717), (142, 57890), (284, 28945), (355, 23156), (497, 16540), (710, 11578), (827, 9940), (994, 8270), (1420, 5789), (1654, 4970), (1988, 4135), (2485, 3308)]