72909940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4987}}^1$

素因数の和:5056

約数の個数: 48

約数和(自身を含む): 165920832

約数和(自身を除く): 93010892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1462, 2924, 3655, 4987, 7310, 9974, 14620, 19948, 24935, 49870, 84779, 99740, 169558, 214441, 339116, 423895, 428882, 847790, 857764, 1072205, 1695580, 2144410, 3645497, 4288820, 7290994, 14581988, 18227485, 36454970, 72909940]

約数ペア:

[(1, 72909940), (2, 36454970), (4, 18227485), (5, 14581988), (10, 7290994), (17, 4288820), (20, 3645497), (34, 2144410), (43, 1695580), (68, 1072205), (85, 857764), (86, 847790), (170, 428882), (172, 423895), (215, 339116), (340, 214441), (430, 169558), (731, 99740), (860, 84779), (1462, 49870), (2924, 24935), (3655, 19948), (4987, 14620), (7310, 9974)]