2880140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 6586272

約数和(自身を除く): 3706132

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 197, 215, 340, 394, 430, 731, 788, 860, 985, 1462, 1970, 2924, 3349, 3655, 3940, 6698, 7310, 8471, 13396, 14620, 16745, 16942, 33490, 33884, 42355, 66980, 84710, 144007, 169420, 288014, 576028, 720035, 1440070, 2880140]

約数ペア:

[(1, 2880140), (2, 1440070), (4, 720035), (5, 576028), (10, 288014), (17, 169420), (20, 144007), (34, 84710), (43, 66980), (68, 42355), (85, 33884), (86, 33490), (170, 16942), (172, 16745), (197, 14620), (215, 13396), (340, 8471), (394, 7310), (430, 6698), (731, 3940), (788, 3655), (860, 3349), (985, 2924), (1462, 1970)]