19729690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2699}}^1$

素因数の和:2766

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 18761510

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2699, 3655, 5398, 7310, 13495, 26990, 45883, 91766, 116057, 229415, 232114, 458830, 580285, 1160570, 1972969, 3945938, 9864845, 19729690]

約数ペア:

[(1, 19729690), (2, 9864845), (5, 3945938), (10, 1972969), (17, 1160570), (34, 580285), (43, 458830), (85, 232114), (86, 229415), (170, 116057), (215, 91766), (430, 45883), (731, 26990), (1462, 13495), (2699, 7310), (3655, 5398)]