489605870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{198221}}^1$

素因数の和:198260

約数の個数: 32

約数和(自身を含む): 999038880

約数和(自身を除く): 509433010

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 198221, 396442, 991105, 1982210, 2576873, 3766199, 5153746, 7532398, 12884365, 18830995, 25768730, 37661990, 48960587, 97921174, 244802935, 489605870]

約数ペア:

[(1, 489605870), (2, 244802935), (5, 97921174), (10, 48960587), (13, 37661990), (19, 25768730), (26, 18830995), (38, 12884365), (65, 7532398), (95, 5153746), (130, 3766199), (190, 2576873), (247, 1982210), (494, 991105), (1235, 396442), (2470, 198221)]