205980975

素因数分解:

$3^4\times 5^2\times {\mathrm{101719}}^1$

素因数の和:101741

約数の個数: 30

約数和(自身を含む): 381551720

約数和(自身を除く): 175570745

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 101719, 305157, 508595, 915471, 1525785, 2542975, 2746413, 4577355, 7628925, 8239239, 13732065, 22886775, 41196195, 68660325, 205980975]

約数ペア:

[(1, 205980975), (3, 68660325), (5, 41196195), (9, 22886775), (15, 13732065), (25, 8239239), (27, 7628925), (45, 4577355), (75, 2746413), (81, 2542975), (135, 1525785), (225, 915471), (405, 508595), (675, 305157), (2025, 101719)]