31438960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1862

約数の個数: 80

約数和(自身を含む): 86280192

約数和(自身を除く): 54841232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 1811, 2170, 2480, 3472, 3622, 4340, 7244, 8680, 9055, 12677, 14488, 17360, 18110, 25354, 28976, 36220, 50708, 56141, 63385, 72440, 101416, 112282, 126770, 144880, 202832, 224564, 253540, 280705, 392987, 449128, 507080, 561410, 785974, 898256, 1014160, 1122820, 1571948, 1964935, 2245640, 3143896, 3929870, 4491280, 6287792, 7859740, 15719480, 31438960]

約数ペア:

[(1, 31438960), (2, 15719480), (4, 7859740), (5, 6287792), (7, 4491280), (8, 3929870), (10, 3143896), (14, 2245640), (16, 1964935), (20, 1571948), (28, 1122820), (31, 1014160), (35, 898256), (40, 785974), (56, 561410), (62, 507080), (70, 449128), (80, 392987), (112, 280705), (124, 253540), (140, 224564), (155, 202832), (217, 144880), (248, 126770), (280, 112282), (310, 101416), (434, 72440), (496, 63385), (560, 56141), (620, 50708), (868, 36220), (1085, 28976), (1240, 25354), (1736, 18110), (1811, 17360), (2170, 14488), (2480, 12677), (3472, 9055), (3622, 8680), (4340, 7244)]