64215460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{188869}}^1$

素因数の和:188895

約数の個数: 24

約数和(自身を含む): 142785720

約数和(自身を除く): 78570260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 188869, 377738, 755476, 944345, 1888690, 3210773, 3777380, 6421546, 12843092, 16053865, 32107730, 64215460]

約数ペア:

[(1, 64215460), (2, 32107730), (4, 16053865), (5, 12843092), (10, 6421546), (17, 3777380), (20, 3210773), (34, 1888690), (68, 944345), (85, 755476), (170, 377738), (340, 188869)]