353178140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{35531}}^1$

素因数の和:35618

約数の個数: 48

約数和(自身を含む): 859590144

約数和(自身を除く): 506412004

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, 4970, 9940, 35531, 71062, 142124, 177655, 248717, 355310, 497434, 710620, 994868, 1243585, 2487170, 2522701, 4974340, 5045402, 10090804, 12613505, 17658907, 25227010, 35317814, 50454020, 70635628, 88294535, 176589070, 353178140]

約数ペア:

[(1, 353178140), (2, 176589070), (4, 88294535), (5, 70635628), (7, 50454020), (10, 35317814), (14, 25227010), (20, 17658907), (28, 12613505), (35, 10090804), (70, 5045402), (71, 4974340), (140, 2522701), (142, 2487170), (284, 1243585), (355, 994868), (497, 710620), (710, 497434), (994, 355310), (1420, 248717), (1988, 177655), (2485, 142124), (4970, 71062), (9940, 35531)]