31811520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2549}}^1$

素因数の和:2582

約数の個数: 112

約数和(自身を含む): 108813600

約数和(自身を除く): 77002080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 2549, 3120, 4160, 5098, 6240, 7647, 10196, 12480, 12745, 15294, 20392, 25490, 30588, 33137, 38235, 40784, 50980, 61176, 66274, 76470, 81568, 99411, 101960, 122352, 132548, 152940, 163136, 165685, 198822, 203920, 244704, 265096, 305880, 331370, 397644, 407840, 489408, 497055, 530192, 611760, 662740, 795288, 815680, 994110, 1060384, 1223520, 1325480, 1590576, 1988220, 2120768, 2447040, 2650960, 3181152, 3976440, 5301920, 6362304, 7952880, 10603840, 15905760, 31811520]

約数ペア:

[(1, 31811520), (2, 15905760), (3, 10603840), (4, 7952880), (5, 6362304), (6, 5301920), (8, 3976440), (10, 3181152), (12, 2650960), (13, 2447040), (15, 2120768), (16, 1988220), (20, 1590576), (24, 1325480), (26, 1223520), (30, 1060384), (32, 994110), (39, 815680), (40, 795288), (48, 662740), (52, 611760), (60, 530192), (64, 497055), (65, 489408), (78, 407840), (80, 397644), (96, 331370), (104, 305880), (120, 265096), (130, 244704), (156, 203920), (160, 198822), (192, 165685), (195, 163136), (208, 152940), (240, 132548), (260, 122352), (312, 101960), (320, 99411), (390, 81568), (416, 76470), (480, 66274), (520, 61176), (624, 50980), (780, 40784), (832, 38235), (960, 33137), (1040, 30588), (1248, 25490), (1560, 20392), (2080, 15294), (2496, 12745), (2549, 12480), (3120, 10196), (4160, 7647), (5098, 6240)]