20189240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6389}}^1$

素因数の和:6479

約数の個数: 32

約数和(自身を含む): 46008000

約数和(自身を除く): 25818760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6389, 12778, 25556, 31945, 51112, 63890, 127780, 255560, 504731, 1009462, 2018924, 2523655, 4037848, 5047310, 10094620, 20189240]

約数ペア:

[(1, 20189240), (2, 10094620), (4, 5047310), (5, 4037848), (8, 2523655), (10, 2018924), (20, 1009462), (40, 504731), (79, 255560), (158, 127780), (316, 63890), (395, 51112), (632, 31945), (790, 25556), (1580, 12778), (3160, 6389)]