16440760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:916

約数の個数: 64

約数和(自身を含む): 42923520

約数和(自身を除く): 26482760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 827, 994, 1420, 1654, 1988, 2485, 2840, 3308, 3976, 4135, 4970, 5789, 6616, 8270, 9940, 11578, 16540, 19880, 23156, 28945, 33080, 46312, 57890, 58717, 115780, 117434, 231560, 234868, 293585, 411019, 469736, 587170, 822038, 1174340, 1644076, 2055095, 2348680, 3288152, 4110190, 8220380, 16440760]

約数ペア:

[(1, 16440760), (2, 8220380), (4, 4110190), (5, 3288152), (7, 2348680), (8, 2055095), (10, 1644076), (14, 1174340), (20, 822038), (28, 587170), (35, 469736), (40, 411019), (56, 293585), (70, 234868), (71, 231560), (140, 117434), (142, 115780), (280, 58717), (284, 57890), (355, 46312), (497, 33080), (568, 28945), (710, 23156), (827, 19880), (994, 16540), (1420, 11578), (1654, 9940), (1988, 8270), (2485, 6616), (2840, 5789), (3308, 4970), (3976, 4135)]