19881200

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{2161}}^1$

素因数の和:2202

約数の個数: 60

約数和(自身を含む): 49864368

約数和(自身を除く): 29983168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 2161, 2300, 4322, 4600, 8644, 9200, 10805, 17288, 21610, 34576, 43220, 49703, 54025, 86440, 99406, 108050, 172880, 198812, 216100, 248515, 397624, 432200, 497030, 795248, 864400, 994060, 1242575, 1988120, 2485150, 3976240, 4970300, 9940600, 19881200]

約数ペア:

[(1, 19881200), (2, 9940600), (4, 4970300), (5, 3976240), (8, 2485150), (10, 1988120), (16, 1242575), (20, 994060), (23, 864400), (25, 795248), (40, 497030), (46, 432200), (50, 397624), (80, 248515), (92, 216100), (100, 198812), (115, 172880), (184, 108050), (200, 99406), (230, 86440), (368, 54025), (400, 49703), (460, 43220), (575, 34576), (920, 21610), (1150, 17288), (1840, 10805), (2161, 9200), (2300, 8644), (4322, 4600)]