20178390875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{66733}}^1$

素因数の和:66848

約数の個数: 32

約数和(自身を含む): 26234470080

約数和(自身を除く): 6056079205

約数列:

[1, 5, 25, 41, 59, 125, 205, 295, 1025, 1475, 2419, 5125, 7375, 12095, 60475, 66733, 302375, 333665, 1668325, 2736053, 3937247, 8341625, 13680265, 19686235, 68401325, 98431175, 161427127, 342006625, 492155875, 807135635, 4035678175, 20178390875]

約数ペア:

[(1, 20178390875), (5, 4035678175), (25, 807135635), (41, 492155875), (59, 342006625), (125, 161427127), (205, 98431175), (295, 68401325), (1025, 19686235), (1475, 13680265), (2419, 8341625), (5125, 3937247), (7375, 2736053), (12095, 1668325), (60475, 333665), (66733, 302375)]