281540355

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{709}}^1\times {\mathrm{1151}}^1$

素因数の和:1891

約数の個数: 32

約数和(自身を含む): 471121920

約数和(自身を除く): 189581565

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 709, 1151, 2127, 3453, 3545, 5755, 10635, 16307, 17265, 26473, 48921, 79419, 81535, 132365, 244605, 397095, 816059, 2448177, 4080295, 12240885, 18769357, 56308071, 93846785, 281540355]

約数ペア:

[(1, 281540355), (3, 93846785), (5, 56308071), (15, 18769357), (23, 12240885), (69, 4080295), (115, 2448177), (345, 816059), (709, 397095), (1151, 244605), (2127, 132365), (3453, 81535), (3545, 79419), (5755, 48921), (10635, 26473), (16307, 17265)]