391980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 1128960

約数和(自身を除く): 736980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 139, 141, 188, 235, 278, 282, 417, 470, 556, 564, 695, 705, 834, 940, 1390, 1410, 1668, 2085, 2780, 2820, 4170, 6533, 8340, 13066, 19599, 26132, 32665, 39198, 65330, 78396, 97995, 130660, 195990, 391980]

約数ペア:

[(1, 391980), (2, 195990), (3, 130660), (4, 97995), (5, 78396), (6, 65330), (10, 39198), (12, 32665), (15, 26132), (20, 19599), (30, 13066), (47, 8340), (60, 6533), (94, 4170), (139, 2820), (141, 2780), (188, 2085), (235, 1668), (278, 1410), (282, 1390), (417, 940), (470, 834), (556, 705), (564, 695)]