18651640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2297}}^1$

素因数の和:2344

約数の個数: 64

約数和(自身を含む): 49636800

約数和(自身を除く): 30985160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 2297, 4060, 4594, 8120, 9188, 11485, 16079, 18376, 22970, 32158, 45940, 64316, 66613, 80395, 91880, 128632, 133226, 160790, 266452, 321580, 333065, 466291, 532904, 643160, 666130, 932582, 1332260, 1865164, 2331455, 2664520, 3730328, 4662910, 9325820, 18651640]

約数ペア:

[(1, 18651640), (2, 9325820), (4, 4662910), (5, 3730328), (7, 2664520), (8, 2331455), (10, 1865164), (14, 1332260), (20, 932582), (28, 666130), (29, 643160), (35, 532904), (40, 466291), (56, 333065), (58, 321580), (70, 266452), (116, 160790), (140, 133226), (145, 128632), (203, 91880), (232, 80395), (280, 66613), (290, 64316), (406, 45940), (580, 32158), (812, 22970), (1015, 18376), (1160, 16079), (1624, 11485), (2030, 9188), (2297, 8120), (4060, 4594)]