518702980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{2087}}^1$

素因数の和:2173

約数の個数: 72

約数和(自身を含む): 1184597568

約数和(自身を除く): 665894588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 289, 340, 430, 578, 731, 860, 1156, 1445, 1462, 2087, 2890, 2924, 3655, 4174, 5780, 7310, 8348, 10435, 12427, 14620, 20870, 24854, 35479, 41740, 49708, 62135, 70958, 89741, 124270, 141916, 177395, 179482, 248540, 354790, 358964, 448705, 603143, 709580, 897410, 1206286, 1525597, 1794820, 2412572, 3015715, 3051194, 6031430, 6102388, 7627985, 12062860, 15255970, 25935149, 30511940, 51870298, 103740596, 129675745, 259351490, 518702980]

約数ペア:

[(1, 518702980), (2, 259351490), (4, 129675745), (5, 103740596), (10, 51870298), (17, 30511940), (20, 25935149), (34, 15255970), (43, 12062860), (68, 7627985), (85, 6102388), (86, 6031430), (170, 3051194), (172, 3015715), (215, 2412572), (289, 1794820), (340, 1525597), (430, 1206286), (578, 897410), (731, 709580), (860, 603143), (1156, 448705), (1445, 358964), (1462, 354790), (2087, 248540), (2890, 179482), (2924, 177395), (3655, 141916), (4174, 124270), (5780, 89741), (7310, 70958), (8348, 62135), (10435, 49708), (12427, 41740), (14620, 35479), (20870, 24854)]