2720403790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1229}}^1\times {\mathrm{17027}}^1$

素因数の和:18276

約数の個数: 32

約数和(自身を含む): 5277998880

約数和(自身を除く): 2557595090

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1229, 2458, 6145, 12290, 15977, 17027, 31954, 34054, 79885, 85135, 159770, 170270, 221351, 442702, 1106755, 2213510, 20926183, 41852366, 104630915, 209261830, 272040379, 544080758, 1360201895, 2720403790]

約数ペア:

[(1, 2720403790), (2, 1360201895), (5, 544080758), (10, 272040379), (13, 209261830), (26, 104630915), (65, 41852366), (130, 20926183), (1229, 2213510), (2458, 1106755), (6145, 442702), (12290, 221351), (15977, 170270), (17027, 159770), (31954, 85135), (34054, 79885)]