47721940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4801}}^1$

素因数の和:4888

約数の個数: 48

約数和(自身を含む): 116169984

約数和(自身を除く): 68448044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4801, 4970, 9602, 9940, 19204, 24005, 33607, 48010, 67214, 96020, 134428, 168035, 336070, 340871, 672140, 681742, 1363484, 1704355, 2386097, 3408710, 4772194, 6817420, 9544388, 11930485, 23860970, 47721940]

約数ペア:

[(1, 47721940), (2, 23860970), (4, 11930485), (5, 9544388), (7, 6817420), (10, 4772194), (14, 3408710), (20, 2386097), (28, 1704355), (35, 1363484), (70, 681742), (71, 672140), (140, 340871), (142, 336070), (284, 168035), (355, 134428), (497, 96020), (710, 67214), (994, 48010), (1420, 33607), (1988, 24005), (2485, 19204), (4801, 9940), (4970, 9602)]