20840200

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1319}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 49104000

約数和(自身を除く): 28263800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1319, 1580, 1975, 2638, 3160, 3950, 5276, 6595, 7900, 10552, 13190, 15800, 26380, 32975, 52760, 65950, 104201, 131900, 208402, 263800, 416804, 521005, 833608, 1042010, 2084020, 2605025, 4168040, 5210050, 10420100, 20840200]

約数ペア:

[(1, 20840200), (2, 10420100), (4, 5210050), (5, 4168040), (8, 2605025), (10, 2084020), (20, 1042010), (25, 833608), (40, 521005), (50, 416804), (79, 263800), (100, 208402), (158, 131900), (200, 104201), (316, 65950), (395, 52760), (632, 32975), (790, 26380), (1319, 15800), (1580, 13190), (1975, 10552), (2638, 7900), (3160, 6595), (3950, 5276)]