27780025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12211}}^1$

素因数の和:12241

約数の個数: 24

約数和(自身を含む): 42400064

約数和(自身を除く): 14620039

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 12211, 61055, 85477, 158743, 305275, 427385, 793715, 1111201, 2136925, 3968575, 5556005, 27780025]

約数ペア:

[(1, 27780025), (5, 5556005), (7, 3968575), (13, 2136925), (25, 1111201), (35, 793715), (65, 427385), (91, 305275), (175, 158743), (325, 85477), (455, 61055), (2275, 12211)]