691900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:79

約数の個数: 72

約数和(自身を含む): 1781136

約数和(自身を除く): 1089236

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 37, 44, 50, 55, 68, 74, 85, 100, 110, 148, 170, 185, 187, 220, 275, 340, 370, 374, 407, 425, 550, 629, 740, 748, 814, 850, 925, 935, 1100, 1258, 1628, 1700, 1850, 1870, 2035, 2516, 3145, 3700, 3740, 4070, 4675, 6290, 6919, 8140, 9350, 10175, 12580, 13838, 15725, 18700, 20350, 27676, 31450, 34595, 40700, 62900, 69190, 138380, 172975, 345950, 691900]

約数ペア:

[(1, 691900), (2, 345950), (4, 172975), (5, 138380), (10, 69190), (11, 62900), (17, 40700), (20, 34595), (22, 31450), (25, 27676), (34, 20350), (37, 18700), (44, 15725), (50, 13838), (55, 12580), (68, 10175), (74, 9350), (85, 8140), (100, 6919), (110, 6290), (148, 4675), (170, 4070), (185, 3740), (187, 3700), (220, 3145), (275, 2516), (340, 2035), (370, 1870), (374, 1850), (407, 1700), (425, 1628), (550, 1258), (629, 1100), (740, 935), (748, 925), (814, 850)]