30921880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2267}}^1$

素因数の和:2320

約数の個数: 64

約数和(自身を含む): 78382080

約数和(自身を除く): 47460200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2267, 2728, 3410, 4534, 6820, 9068, 11335, 13640, 18136, 22670, 24937, 45340, 49874, 70277, 90680, 99748, 124685, 140554, 199496, 249370, 281108, 351385, 498740, 562216, 702770, 773047, 997480, 1405540, 1546094, 2811080, 3092188, 3865235, 6184376, 7730470, 15460940, 30921880]

約数ペア:

[(1, 30921880), (2, 15460940), (4, 7730470), (5, 6184376), (8, 3865235), (10, 3092188), (11, 2811080), (20, 1546094), (22, 1405540), (31, 997480), (40, 773047), (44, 702770), (55, 562216), (62, 498740), (88, 351385), (110, 281108), (124, 249370), (155, 199496), (220, 140554), (248, 124685), (310, 99748), (341, 90680), (440, 70277), (620, 49874), (682, 45340), (1240, 24937), (1364, 22670), (1705, 18136), (2267, 13640), (2728, 11335), (3410, 9068), (4534, 6820)]