40386025

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{41}}^2$

素因数の和:154

約数の個数: 27

約数和(自身を含む): 53039109

約数和(自身を除く): 12653084

約数列:

[1, 5, 25, 31, 41, 155, 205, 775, 961, 1025, 1271, 1681, 4805, 6355, 8405, 24025, 31775, 39401, 42025, 52111, 197005, 260555, 985025, 1302775, 1615441, 8077205, 40386025]

約数ペア:

[(1, 40386025), (5, 8077205), (25, 1615441), (31, 1302775), (41, 985025), (155, 260555), (205, 197005), (775, 52111), (961, 42025), (1025, 39401), (1271, 31775), (1681, 24025), (4805, 8405)]