720456428

素因数分解:

$2^2\times {\mathrm{41}}^2\times {\mathrm{109}}^1\times {\mathrm{983}}^1$

素因数の和:1178

約数の個数: 36

約数和(自身を含む): 1305482640

約数和(自身を除く): 585026212

約数列:

[1, 2, 4, 41, 82, 109, 164, 218, 436, 983, 1681, 1966, 3362, 3932, 4469, 6724, 8938, 17876, 40303, 80606, 107147, 161212, 183229, 214294, 366458, 428588, 732916, 1652423, 3304846, 4393027, 6609692, 8786054, 17572108, 180114107, 360228214, 720456428]

約数ペア:

[(1, 720456428), (2, 360228214), (4, 180114107), (41, 17572108), (82, 8786054), (109, 6609692), (164, 4393027), (218, 3304846), (436, 1652423), (983, 732916), (1681, 428588), (1966, 366458), (3362, 214294), (3932, 183229), (4469, 161212), (6724, 107147), (8938, 80606), (17876, 40303)]