400635

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 720720

約数和(自身を除く): 320085

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 307, 435, 921, 1305, 1535, 2763, 4605, 8903, 13815, 26709, 44515, 80127, 133545, 400635]

約数ペア:

[(1, 400635), (3, 133545), (5, 80127), (9, 44515), (15, 26709), (29, 13815), (45, 8903), (87, 4605), (145, 2763), (261, 1535), (307, 1305), (435, 921)]