218730855

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{3767}}^1$

素因数の和:3868

約数の個数: 48

約数和(自身を含む): 412369920

約数和(自身を除く): 193639065

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 79, 105, 147, 237, 245, 395, 553, 735, 1185, 1659, 2765, 3767, 3871, 8295, 11301, 11613, 18835, 19355, 26369, 56505, 58065, 79107, 131845, 184583, 297593, 395535, 553749, 892779, 922915, 1487965, 2083151, 2768745, 4463895, 6249453, 10415755, 14582057, 31247265, 43746171, 72910285, 218730855]

約数ペア:

[(1, 218730855), (3, 72910285), (5, 43746171), (7, 31247265), (15, 14582057), (21, 10415755), (35, 6249453), (49, 4463895), (79, 2768745), (105, 2083151), (147, 1487965), (237, 922915), (245, 892779), (395, 553749), (553, 395535), (735, 297593), (1185, 184583), (1659, 131845), (2765, 79107), (3767, 58065), (3871, 56505), (8295, 26369), (11301, 19355), (11613, 18835)]