30678980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21013}}^1$

素因数の和:21095

約数の個数: 24

約数和(自身を含む): 65311512

約数和(自身を除く): 34632532

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 21013, 42026, 84052, 105065, 210130, 420260, 1533949, 3067898, 6135796, 7669745, 15339490, 30678980]

約数ペア:

[(1, 30678980), (2, 15339490), (4, 7669745), (5, 6135796), (10, 3067898), (20, 1533949), (73, 420260), (146, 210130), (292, 105065), (365, 84052), (730, 42026), (1460, 21013)]