8717380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 21240576

約数和(自身を除く): 12523196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 877, 994, 1420, 1754, 1988, 2485, 3508, 4385, 4970, 6139, 8770, 9940, 12278, 17540, 24556, 30695, 61390, 62267, 122780, 124534, 249068, 311335, 435869, 622670, 871738, 1245340, 1743476, 2179345, 4358690, 8717380]

約数ペア:

[(1, 8717380), (2, 4358690), (4, 2179345), (5, 1743476), (7, 1245340), (10, 871738), (14, 622670), (20, 435869), (28, 311335), (35, 249068), (70, 124534), (71, 122780), (140, 62267), (142, 61390), (284, 30695), (355, 24556), (497, 17540), (710, 12278), (877, 9940), (994, 8770), (1420, 6139), (1754, 4970), (1988, 4385), (2485, 3508)]