172874620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{1123}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 373887360

約数和(自身を除く): 201012740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 430, 716, 860, 895, 1123, 1790, 2246, 3580, 4492, 5615, 7697, 11230, 15394, 22460, 30788, 38485, 48289, 76970, 96578, 153940, 193156, 201017, 241445, 402034, 482890, 804068, 965780, 1005085, 2010170, 4020340, 8643731, 17287462, 34574924, 43218655, 86437310, 172874620]

約数ペア:

[(1, 172874620), (2, 86437310), (4, 43218655), (5, 34574924), (10, 17287462), (20, 8643731), (43, 4020340), (86, 2010170), (172, 1005085), (179, 965780), (215, 804068), (358, 482890), (430, 402034), (716, 241445), (860, 201017), (895, 193156), (1123, 153940), (1790, 96578), (2246, 76970), (3580, 48289), (4492, 38485), (5615, 30788), (7697, 22460), (11230, 15394)]