398412225

素因数分解:

$3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{12739}}^1$

素因数の和:12894

約数の個数: 36

約数和(自身を含む): 718790800

約数和(自身を除く): 320378575

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 139, 225, 417, 695, 1251, 2085, 3475, 6255, 10425, 12739, 31275, 38217, 63695, 114651, 191085, 318475, 573255, 955425, 1770721, 2866275, 5312163, 8853605, 15936489, 26560815, 44268025, 79682445, 132804075, 398412225]

約数ペア:

[(1, 398412225), (3, 132804075), (5, 79682445), (9, 44268025), (15, 26560815), (25, 15936489), (45, 8853605), (75, 5312163), (139, 2866275), (225, 1770721), (417, 955425), (695, 573255), (1251, 318475), (2085, 191085), (3475, 114651), (6255, 63695), (10425, 38217), (12739, 31275)]