21598600

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1367}}^1$

素因数の和:1462

約数の個数: 48

約数和(自身を含む): 50889600

約数和(自身を除く): 29291000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1367, 1580, 1975, 2734, 3160, 3950, 5468, 6835, 7900, 10936, 13670, 15800, 27340, 34175, 54680, 68350, 107993, 136700, 215986, 273400, 431972, 539965, 863944, 1079930, 2159860, 2699825, 4319720, 5399650, 10799300, 21598600]

約数ペア:

[(1, 21598600), (2, 10799300), (4, 5399650), (5, 4319720), (8, 2699825), (10, 2159860), (20, 1079930), (25, 863944), (40, 539965), (50, 431972), (79, 273400), (100, 215986), (158, 136700), (200, 107993), (316, 68350), (395, 54680), (632, 34175), (790, 27340), (1367, 15800), (1580, 13670), (1975, 10936), (2734, 7900), (3160, 6835), (3950, 5468)]