80201720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{37831}}^1$

素因数の和:37895

約数の個数: 32

約数和(自身を含む): 183863520

約数和(自身を除く): 103661800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 37831, 75662, 151324, 189155, 302648, 378310, 756620, 1513240, 2005043, 4010086, 8020172, 10025215, 16040344, 20050430, 40100860, 80201720]

約数ペア:

[(1, 80201720), (2, 40100860), (4, 20050430), (5, 16040344), (8, 10025215), (10, 8020172), (20, 4010086), (40, 2005043), (53, 1513240), (106, 756620), (212, 378310), (265, 302648), (424, 189155), (530, 151324), (1060, 75662), (2120, 37831)]