7789140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 23903880

約数和(自身を除く): 16114740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 397, 436, 545, 654, 794, 981, 1090, 1191, 1308, 1588, 1635, 1962, 1985, 2180, 2382, 3270, 3573, 3924, 3970, 4764, 4905, 5955, 6540, 7146, 7940, 9810, 11910, 14292, 17865, 19620, 23820, 35730, 43273, 71460, 86546, 129819, 173092, 216365, 259638, 389457, 432730, 519276, 649095, 778914, 865460, 1298190, 1557828, 1947285, 2596380, 3894570, 7789140]

約数ペア:

[(1, 7789140), (2, 3894570), (3, 2596380), (4, 1947285), (5, 1557828), (6, 1298190), (9, 865460), (10, 778914), (12, 649095), (15, 519276), (18, 432730), (20, 389457), (30, 259638), (36, 216365), (45, 173092), (60, 129819), (90, 86546), (109, 71460), (180, 43273), (218, 35730), (327, 23820), (397, 19620), (436, 17865), (545, 14292), (654, 11910), (794, 9810), (981, 7940), (1090, 7146), (1191, 6540), (1308, 5955), (1588, 4905), (1635, 4764), (1962, 3970), (1985, 3924), (2180, 3573), (2382, 3270)]