8215025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 13165824

約数和(自身を除く): 4950799

約数列:

[1, 5, 7, 13, 23, 25, 35, 65, 91, 115, 157, 161, 175, 299, 325, 455, 575, 785, 805, 1099, 1495, 2041, 2093, 2275, 3611, 3925, 4025, 5495, 7475, 10205, 10465, 14287, 18055, 25277, 27475, 46943, 51025, 52325, 71435, 90275, 126385, 234715, 328601, 357175, 631925, 1173575, 1643005, 8215025]

約数ペア:

[(1, 8215025), (5, 1643005), (7, 1173575), (13, 631925), (23, 357175), (25, 328601), (35, 234715), (65, 126385), (91, 90275), (115, 71435), (157, 52325), (161, 51025), (175, 46943), (299, 27475), (325, 25277), (455, 18055), (575, 14287), (785, 10465), (805, 10205), (1099, 7475), (1495, 5495), (2041, 4025), (2093, 3925), (2275, 3611)]