82904080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21149}}^1$

素因数の和:21176

約数の個数: 60

約数和(自身を含む): 224232300

約数和(自身を除く): 141328220

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21149, 42298, 84596, 105745, 148043, 169192, 211490, 296086, 338384, 422980, 592172, 740215, 845960, 1036301, 1184344, 1480430, 1691920, 2072602, 2368688, 2960860, 4145204, 5181505, 5921720, 8290408, 10363010, 11843440, 16580816, 20726020, 41452040, 82904080]

約数ペア:

[(1, 82904080), (2, 41452040), (4, 20726020), (5, 16580816), (7, 11843440), (8, 10363010), (10, 8290408), (14, 5921720), (16, 5181505), (20, 4145204), (28, 2960860), (35, 2368688), (40, 2072602), (49, 1691920), (56, 1480430), (70, 1184344), (80, 1036301), (98, 845960), (112, 740215), (140, 592172), (196, 422980), (245, 338384), (280, 296086), (392, 211490), (490, 169192), (560, 148043), (784, 105745), (980, 84596), (1960, 42298), (3920, 21149)]