19294960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:206

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 27844880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 79, 80, 86, 142, 158, 172, 215, 284, 316, 344, 355, 395, 430, 568, 632, 688, 710, 790, 860, 1136, 1264, 1420, 1580, 1720, 2840, 3053, 3160, 3397, 3440, 5609, 5680, 6106, 6320, 6794, 11218, 12212, 13588, 15265, 16985, 22436, 24424, 27176, 28045, 30530, 33970, 44872, 48848, 54352, 56090, 61060, 67940, 89744, 112180, 122120, 135880, 224360, 241187, 244240, 271760, 448720, 482374, 964748, 1205935, 1929496, 2411870, 3858992, 4823740, 9647480, 19294960]

約数ペア:

[(1, 19294960), (2, 9647480), (4, 4823740), (5, 3858992), (8, 2411870), (10, 1929496), (16, 1205935), (20, 964748), (40, 482374), (43, 448720), (71, 271760), (79, 244240), (80, 241187), (86, 224360), (142, 135880), (158, 122120), (172, 112180), (215, 89744), (284, 67940), (316, 61060), (344, 56090), (355, 54352), (395, 48848), (430, 44872), (568, 33970), (632, 30530), (688, 28045), (710, 27176), (790, 24424), (860, 22436), (1136, 16985), (1264, 15265), (1420, 13588), (1580, 12212), (1720, 11218), (2840, 6794), (3053, 6320), (3160, 6106), (3397, 5680), (3440, 5609)]