208402000

素因数分解:

$2^4\times 5^3\times {\mathrm{79}}^1\times {\mathrm{1319}}^1$

素因数の和:1421

約数の個数: 80

約数和(自身を含む): 510681600

約数和(自身を除く): 302279600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 125, 158, 200, 250, 316, 395, 400, 500, 632, 790, 1000, 1264, 1319, 1580, 1975, 2000, 2638, 3160, 3950, 5276, 6320, 6595, 7900, 9875, 10552, 13190, 15800, 19750, 21104, 26380, 31600, 32975, 39500, 52760, 65950, 79000, 104201, 105520, 131900, 158000, 164875, 208402, 263800, 329750, 416804, 521005, 527600, 659500, 833608, 1042010, 1319000, 1667216, 2084020, 2605025, 2638000, 4168040, 5210050, 8336080, 10420100, 13025125, 20840200, 26050250, 41680400, 52100500, 104201000, 208402000]

約数ペア:

[(1, 208402000), (2, 104201000), (4, 52100500), (5, 41680400), (8, 26050250), (10, 20840200), (16, 13025125), (20, 10420100), (25, 8336080), (40, 5210050), (50, 4168040), (79, 2638000), (80, 2605025), (100, 2084020), (125, 1667216), (158, 1319000), (200, 1042010), (250, 833608), (316, 659500), (395, 527600), (400, 521005), (500, 416804), (632, 329750), (790, 263800), (1000, 208402), (1264, 164875), (1319, 158000), (1580, 131900), (1975, 105520), (2000, 104201), (2638, 79000), (3160, 65950), (3950, 52760), (5276, 39500), (6320, 32975), (6595, 31600), (7900, 26380), (9875, 21104), (10552, 19750), (13190, 15800)]