665260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 48

約数和(自身を含む): 1532160

約数和(自身を除く): 866900

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 37, 58, 62, 74, 116, 124, 145, 148, 155, 185, 290, 310, 370, 580, 620, 740, 899, 1073, 1147, 1798, 2146, 2294, 3596, 4292, 4495, 4588, 5365, 5735, 8990, 10730, 11470, 17980, 21460, 22940, 33263, 66526, 133052, 166315, 332630, 665260]

約数ペア:

[(1, 665260), (2, 332630), (4, 166315), (5, 133052), (10, 66526), (20, 33263), (29, 22940), (31, 21460), (37, 17980), (58, 11470), (62, 10730), (74, 8990), (116, 5735), (124, 5365), (145, 4588), (148, 4495), (155, 4292), (185, 3596), (290, 2294), (310, 2146), (370, 1798), (580, 1147), (620, 1073), (740, 899)]