391560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 1270080

約数和(自身を除く): 878520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 251, 260, 312, 390, 502, 520, 753, 780, 1004, 1255, 1506, 1560, 2008, 2510, 3012, 3263, 3765, 5020, 6024, 6526, 7530, 9789, 10040, 13052, 15060, 16315, 19578, 26104, 30120, 32630, 39156, 48945, 65260, 78312, 97890, 130520, 195780, 391560]

約数ペア:

[(1, 391560), (2, 195780), (3, 130520), (4, 97890), (5, 78312), (6, 65260), (8, 48945), (10, 39156), (12, 32630), (13, 30120), (15, 26104), (20, 19578), (24, 16315), (26, 15060), (30, 13052), (39, 10040), (40, 9789), (52, 7530), (60, 6526), (65, 6024), (78, 5020), (104, 3765), (120, 3263), (130, 3012), (156, 2510), (195, 2008), (251, 1560), (260, 1506), (312, 1255), (390, 1004), (502, 780), (520, 753)]