199791875

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 263540640

約数和(自身を除く): 63748765

約数列:

[1, 5, 25, 29, 73, 125, 145, 151, 365, 625, 725, 755, 1825, 2117, 3625, 3775, 4379, 9125, 10585, 11023, 18125, 18875, 21895, 45625, 52925, 55115, 94375, 109475, 264625, 275575, 319667, 547375, 1323125, 1377875, 1598335, 2736875, 6889375, 7991675, 39958375, 199791875]

約数ペア:

[(1, 199791875), (5, 39958375), (25, 7991675), (29, 6889375), (73, 2736875), (125, 1598335), (145, 1377875), (151, 1323125), (365, 547375), (625, 319667), (725, 275575), (755, 264625), (1825, 109475), (2117, 94375), (3625, 55115), (3775, 52925), (4379, 45625), (9125, 21895), (10585, 18875), (11023, 18125)]