19311875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{53}}^2$

素因数の和:137

約数の個数: 30

約数和(自身を含む): 26832036

約数和(自身を除く): 7520161

約数列:

[1, 5, 11, 25, 53, 55, 125, 265, 275, 583, 625, 1325, 1375, 2809, 2915, 6625, 6875, 14045, 14575, 30899, 33125, 70225, 72875, 154495, 351125, 364375, 772475, 1755625, 3862375, 19311875]

約数ペア:

[(1, 19311875), (5, 3862375), (11, 1755625), (25, 772475), (53, 364375), (55, 351125), (125, 154495), (265, 72875), (275, 70225), (583, 33125), (625, 30899), (1325, 14575), (1375, 14045), (2809, 6875), (2915, 6625)]