67979660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1071

約数の個数: 72

約数和(自身を含む): 168575904

約数和(自身を除く): 100596244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 977, 980, 994, 1420, 1954, 1988, 2485, 3479, 3908, 4885, 4970, 6839, 6958, 9770, 9940, 13678, 13916, 17395, 19540, 27356, 34195, 34790, 47873, 68390, 69367, 69580, 95746, 136780, 138734, 191492, 239365, 277468, 346835, 478730, 485569, 693670, 957460, 971138, 1387340, 1942276, 2427845, 3398983, 4855690, 6797966, 9711380, 13595932, 16994915, 33989830, 67979660]

約数ペア:

[(1, 67979660), (2, 33989830), (4, 16994915), (5, 13595932), (7, 9711380), (10, 6797966), (14, 4855690), (20, 3398983), (28, 2427845), (35, 1942276), (49, 1387340), (70, 971138), (71, 957460), (98, 693670), (140, 485569), (142, 478730), (196, 346835), (245, 277468), (284, 239365), (355, 191492), (490, 138734), (497, 136780), (710, 95746), (977, 69580), (980, 69367), (994, 68390), (1420, 47873), (1954, 34790), (1988, 34195), (2485, 27356), (3479, 19540), (3908, 17395), (4885, 13916), (4970, 13678), (6839, 9940), (6958, 9770)]