209375240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{168851}}^1$

素因数の和:168893

約数の個数: 32

約数和(自身を含む): 486293760

約数和(自身を除く): 276918520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 168851, 337702, 675404, 844255, 1350808, 1688510, 3377020, 5234381, 6754040, 10468762, 20937524, 26171905, 41875048, 52343810, 104687620, 209375240]

約数ペア:

[(1, 209375240), (2, 104687620), (4, 52343810), (5, 41875048), (8, 26171905), (10, 20937524), (20, 10468762), (31, 6754040), (40, 5234381), (62, 3377020), (124, 1688510), (155, 1350808), (248, 844255), (310, 675404), (620, 337702), (1240, 168851)]