31155220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2131}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 70918848

約数和(自身を除く): 39763628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1462, 2131, 2924, 3655, 4262, 7310, 8524, 10655, 14620, 21310, 36227, 42620, 72454, 91633, 144908, 181135, 183266, 362270, 366532, 458165, 724540, 916330, 1557761, 1832660, 3115522, 6231044, 7788805, 15577610, 31155220]

約数ペア:

[(1, 31155220), (2, 15577610), (4, 7788805), (5, 6231044), (10, 3115522), (17, 1832660), (20, 1557761), (34, 916330), (43, 724540), (68, 458165), (85, 366532), (86, 362270), (170, 183266), (172, 181135), (215, 144908), (340, 91633), (430, 72454), (731, 42620), (860, 36227), (1462, 21310), (2131, 14620), (2924, 10655), (3655, 8524), (4262, 7310)]