39156875

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 40

約数和(自身を含む): 52783104

約数和(自身を除く): 13626229

約数列:

[1, 5, 25, 31, 43, 47, 125, 155, 215, 235, 625, 775, 1075, 1175, 1333, 1457, 2021, 3875, 5375, 5875, 6665, 7285, 10105, 19375, 26875, 29375, 33325, 36425, 50525, 62651, 166625, 182125, 252625, 313255, 833125, 910625, 1263125, 1566275, 7831375, 39156875]

約数ペア:

[(1, 39156875), (5, 7831375), (25, 1566275), (31, 1263125), (43, 910625), (47, 833125), (125, 313255), (155, 252625), (215, 182125), (235, 166625), (625, 62651), (775, 50525), (1075, 36425), (1175, 33325), (1333, 29375), (1457, 26875), (2021, 19375), (3875, 10105), (5375, 7285), (5875, 6665)]