19764760

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9323}}^1$

素因数の和:9387

約数の個数: 32

約数和(自身を含む): 45314640

約数和(自身を除く): 25549880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9323, 18646, 37292, 46615, 74584, 93230, 186460, 372920, 494119, 988238, 1976476, 2470595, 3952952, 4941190, 9882380, 19764760]

約数ペア:

[(1, 19764760), (2, 9882380), (4, 4941190), (5, 3952952), (8, 2470595), (10, 1976476), (20, 988238), (40, 494119), (53, 372920), (106, 186460), (212, 93230), (265, 74584), (424, 46615), (530, 37292), (1060, 18646), (2120, 9323)]