31331235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 57286656

約数和(自身を除く): 25955421

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 71, 73, 93, 155, 195, 213, 219, 355, 365, 403, 465, 923, 949, 1065, 1095, 1209, 2015, 2201, 2263, 2769, 2847, 4615, 4745, 5183, 6045, 6603, 6789, 11005, 11315, 13845, 14235, 15549, 25915, 28613, 29419, 33015, 33945, 67379, 77745, 85839, 88257, 143065, 147095, 160673, 202137, 336895, 429195, 441285, 482019, 803365, 1010685, 2088749, 2410095, 6266247, 10443745, 31331235]

約数ペア:

[(1, 31331235), (3, 10443745), (5, 6266247), (13, 2410095), (15, 2088749), (31, 1010685), (39, 803365), (65, 482019), (71, 441285), (73, 429195), (93, 336895), (155, 202137), (195, 160673), (213, 147095), (219, 143065), (355, 88257), (365, 85839), (403, 77745), (465, 67379), (923, 33945), (949, 33015), (1065, 29419), (1095, 28613), (1209, 25915), (2015, 15549), (2201, 14235), (2263, 13845), (2769, 11315), (2847, 11005), (4615, 6789), (4745, 6603), (5183, 6045)]