397222705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{383}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 529182720

約数和(自身を除く): 131960015

約数列:

[1, 5, 11, 55, 109, 173, 383, 545, 865, 1199, 1903, 1915, 4213, 5995, 9515, 18857, 21065, 41747, 66259, 94285, 207427, 208735, 331295, 459217, 728849, 1037135, 2296085, 3644245, 7222231, 36111155, 79444541, 397222705]

約数ペア:

[(1, 397222705), (5, 79444541), (11, 36111155), (55, 7222231), (109, 3644245), (173, 2296085), (383, 1037135), (545, 728849), (865, 459217), (1199, 331295), (1903, 208735), (1915, 207427), (4213, 94285), (5995, 66259), (9515, 41747), (18857, 21065)]