2782140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 7892640

約数和(自身を除く): 5110500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 521, 534, 890, 1042, 1068, 1335, 1563, 1780, 2084, 2605, 2670, 3126, 5210, 5340, 6252, 7815, 10420, 15630, 31260, 46369, 92738, 139107, 185476, 231845, 278214, 463690, 556428, 695535, 927380, 1391070, 2782140]

約数ペア:

[(1, 2782140), (2, 1391070), (3, 927380), (4, 695535), (5, 556428), (6, 463690), (10, 278214), (12, 231845), (15, 185476), (20, 139107), (30, 92738), (60, 46369), (89, 31260), (178, 15630), (267, 10420), (356, 7815), (445, 6252), (521, 5340), (534, 5210), (890, 3126), (1042, 2670), (1068, 2605), (1335, 2084), (1563, 1780)]