19313020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 43975008

約数和(自身を除く): 24661988

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1321, 1462, 2642, 2924, 3655, 5284, 6605, 7310, 13210, 14620, 22457, 26420, 44914, 56803, 89828, 112285, 113606, 224570, 227212, 284015, 449140, 568030, 965651, 1136060, 1931302, 3862604, 4828255, 9656510, 19313020]

約数ペア:

[(1, 19313020), (2, 9656510), (4, 4828255), (5, 3862604), (10, 1931302), (17, 1136060), (20, 965651), (34, 568030), (43, 449140), (68, 284015), (85, 227212), (86, 224570), (170, 113606), (172, 112285), (215, 89828), (340, 56803), (430, 44914), (731, 26420), (860, 22457), (1321, 14620), (1462, 13210), (2642, 7310), (2924, 6605), (3655, 5284)]