78231620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5351}}^1$

素因数の和:5420

約数の個数: 48

約数和(自身を含む): 178028928

約数和(自身を除く): 99797308

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, 5351, 7310, 10702, 14620, 21404, 26755, 53510, 90967, 107020, 181934, 230093, 363868, 454835, 460186, 909670, 920372, 1150465, 1819340, 2300930, 3911581, 4601860, 7823162, 15646324, 19557905, 39115810, 78231620]

約数ペア:

[(1, 78231620), (2, 39115810), (4, 19557905), (5, 15646324), (10, 7823162), (17, 4601860), (20, 3911581), (34, 2300930), (43, 1819340), (68, 1150465), (85, 920372), (86, 909670), (170, 460186), (172, 454835), (215, 363868), (340, 230093), (430, 181934), (731, 107020), (860, 90967), (1462, 53510), (2924, 26755), (3655, 21404), (5351, 14620), (7310, 10702)]