305660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:86

約数の個数: 48

約数和(自身を含む): 725760

約数和(自身を除く): 420100

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 31, 34, 58, 62, 68, 85, 116, 124, 145, 155, 170, 290, 310, 340, 493, 527, 580, 620, 899, 986, 1054, 1798, 1972, 2108, 2465, 2635, 3596, 4495, 4930, 5270, 8990, 9860, 10540, 15283, 17980, 30566, 61132, 76415, 152830, 305660]

約数ペア:

[(1, 305660), (2, 152830), (4, 76415), (5, 61132), (10, 30566), (17, 17980), (20, 15283), (29, 10540), (31, 9860), (34, 8990), (58, 5270), (62, 4930), (68, 4495), (85, 3596), (116, 2635), (124, 2465), (145, 2108), (155, 1972), (170, 1798), (290, 1054), (310, 986), (340, 899), (493, 620), (527, 580)]