21273360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{647}}^1$

素因数の和:800

約数の個数: 80

約数和(自身を含む): 66531456

約数和(自身を除く): 45258096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 647, 685, 822, 1096, 1294, 1370, 1644, 1941, 2055, 2192, 2588, 2740, 3235, 3288, 3882, 4110, 5176, 5480, 6470, 6576, 7764, 8220, 9705, 10352, 10960, 12940, 15528, 16440, 19410, 25880, 31056, 32880, 38820, 51760, 77640, 88639, 155280, 177278, 265917, 354556, 443195, 531834, 709112, 886390, 1063668, 1329585, 1418224, 1772780, 2127336, 2659170, 3545560, 4254672, 5318340, 7091120, 10636680, 21273360]

約数ペア:

[(1, 21273360), (2, 10636680), (3, 7091120), (4, 5318340), (5, 4254672), (6, 3545560), (8, 2659170), (10, 2127336), (12, 1772780), (15, 1418224), (16, 1329585), (20, 1063668), (24, 886390), (30, 709112), (40, 531834), (48, 443195), (60, 354556), (80, 265917), (120, 177278), (137, 155280), (240, 88639), (274, 77640), (411, 51760), (548, 38820), (647, 32880), (685, 31056), (822, 25880), (1096, 19410), (1294, 16440), (1370, 15528), (1644, 12940), (1941, 10960), (2055, 10352), (2192, 9705), (2588, 8220), (2740, 7764), (3235, 6576), (3288, 6470), (3882, 5480), (4110, 5176)]