17663380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1777}}^1$

素因数の和:1864

約数の個数: 48

約数和(自身を含む): 43013376

約数和(自身を除く): 25349996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1777, 1988, 2485, 3554, 4970, 7108, 8885, 9940, 12439, 17770, 24878, 35540, 49756, 62195, 124390, 126167, 248780, 252334, 504668, 630835, 883169, 1261670, 1766338, 2523340, 3532676, 4415845, 8831690, 17663380]

約数ペア:

[(1, 17663380), (2, 8831690), (4, 4415845), (5, 3532676), (7, 2523340), (10, 1766338), (14, 1261670), (20, 883169), (28, 630835), (35, 504668), (70, 252334), (71, 248780), (140, 126167), (142, 124390), (284, 62195), (355, 49756), (497, 35540), (710, 24878), (994, 17770), (1420, 12439), (1777, 9940), (1988, 8885), (2485, 7108), (3554, 4970)]