388236875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:777

約数の個数: 40

約数和(自身を含む): 530605152

約数和(自身を除く): 142368277

約数列:

[1, 5, 13, 25, 65, 71, 125, 325, 355, 625, 673, 923, 1625, 1775, 3365, 4615, 8125, 8749, 8875, 16825, 23075, 43745, 44375, 47783, 84125, 115375, 218725, 238915, 420625, 576875, 621179, 1093625, 1194575, 3105895, 5468125, 5972875, 15529475, 29864375, 77647375, 388236875]

約数ペア:

[(1, 388236875), (5, 77647375), (13, 29864375), (25, 15529475), (65, 5972875), (71, 5468125), (125, 3105895), (325, 1194575), (355, 1093625), (625, 621179), (673, 576875), (923, 420625), (1625, 238915), (1775, 218725), (3365, 115375), (4615, 84125), (8125, 47783), (8749, 44375), (8875, 43745), (16825, 23075)]