82515575

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:312

約数の個数: 36

約数和(自身を含む): 111117888

約数和(自身を除く): 28602313

約数列:

[1, 5, 19, 25, 41, 95, 205, 223, 361, 475, 779, 1025, 1115, 1805, 3895, 4237, 5575, 9025, 9143, 14801, 19475, 21185, 45715, 74005, 80503, 105925, 173717, 228575, 370025, 402515, 868585, 2012575, 3300623, 4342925, 16503115, 82515575]

約数ペア:

[(1, 82515575), (5, 16503115), (19, 4342925), (25, 3300623), (41, 2012575), (95, 868585), (205, 402515), (223, 370025), (361, 228575), (475, 173717), (779, 105925), (1025, 80503), (1115, 74005), (1805, 45715), (3895, 21185), (4237, 19475), (5575, 14801), (9025, 9143)]