28390940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74713}}^1$

素因数の和:74741

約数の個数: 24

約数和(自身を含む): 62759760

約数和(自身を除く): 34368820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74713, 149426, 298852, 373565, 747130, 1419547, 1494260, 2839094, 5678188, 7097735, 14195470, 28390940]

約数ペア:

[(1, 28390940), (2, 14195470), (4, 7097735), (5, 5678188), (10, 2839094), (19, 1494260), (20, 1419547), (38, 747130), (76, 373565), (95, 298852), (190, 149426), (380, 74713)]