72864725

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{631}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 94041600

約数和(自身を除く): 21176875

約数列:

[1, 5, 25, 31, 149, 155, 631, 745, 775, 3155, 3725, 4619, 15775, 19561, 23095, 94019, 97805, 115475, 470095, 489025, 2350475, 2914589, 14572945, 72864725]

約数ペア:

[(1, 72864725), (5, 14572945), (25, 2914589), (31, 2350475), (149, 489025), (155, 470095), (631, 115475), (745, 97805), (775, 94019), (3155, 23095), (3725, 19561), (4619, 15775)]