4388020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2411}}^1$

素因数の和:2440

約数の個数: 48

約数和(自身を含む): 11346048

約数和(自身を除く): 6958028

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 2411, 4822, 9644, 12055, 16877, 24110, 31343, 33754, 48220, 62686, 67508, 84385, 125372, 156715, 168770, 219401, 313430, 337540, 438802, 626860, 877604, 1097005, 2194010, 4388020]

約数ペア:

[(1, 4388020), (2, 2194010), (4, 1097005), (5, 877604), (7, 626860), (10, 438802), (13, 337540), (14, 313430), (20, 219401), (26, 168770), (28, 156715), (35, 125372), (52, 84385), (65, 67508), (70, 62686), (91, 48220), (130, 33754), (140, 31343), (182, 24110), (260, 16877), (364, 12055), (455, 9644), (910, 4822), (1820, 2411)]