89920040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321143}}^1$

素因数の和:321161

約数の個数: 32

約数和(自身を含む): 231223680

約数和(自身を除く): 141303640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321143, 642286, 1284572, 1605715, 2248001, 2569144, 3211430, 4496002, 6422860, 8992004, 11240005, 12845720, 17984008, 22480010, 44960020, 89920040]

約数ペア:

[(1, 89920040), (2, 44960020), (4, 22480010), (5, 17984008), (7, 12845720), (8, 11240005), (10, 8992004), (14, 6422860), (20, 4496002), (28, 3211430), (35, 2569144), (40, 2248001), (56, 1605715), (70, 1284572), (140, 642286), (280, 321143)]