31900240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 80709120

約数和(自身を除く): 48808880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 677, 760, 1178, 1240, 1354, 1520, 2356, 2480, 2708, 2945, 3385, 4712, 5416, 5890, 6770, 9424, 10832, 11780, 12863, 13540, 20987, 23560, 25726, 27080, 41974, 47120, 51452, 54160, 64315, 83948, 102904, 104935, 128630, 167896, 205808, 209870, 257260, 335792, 398753, 419740, 514520, 797506, 839480, 1029040, 1595012, 1678960, 1993765, 3190024, 3987530, 6380048, 7975060, 15950120, 31900240]

約数ペア:

[(1, 31900240), (2, 15950120), (4, 7975060), (5, 6380048), (8, 3987530), (10, 3190024), (16, 1993765), (19, 1678960), (20, 1595012), (31, 1029040), (38, 839480), (40, 797506), (62, 514520), (76, 419740), (80, 398753), (95, 335792), (124, 257260), (152, 209870), (155, 205808), (190, 167896), (248, 128630), (304, 104935), (310, 102904), (380, 83948), (496, 64315), (589, 54160), (620, 51452), (677, 47120), (760, 41974), (1178, 27080), (1240, 25726), (1354, 23560), (1520, 20987), (2356, 13540), (2480, 12863), (2708, 11780), (2945, 10832), (3385, 9424), (4712, 6770), (5416, 5890)]