21947280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4813}}^1$

素因数の和:4848

約数の個数: 80

約数和(自身を含む): 71632320

約数和(自身を除く): 49685040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 4813, 9626, 14439, 19252, 24065, 28878, 38504, 48130, 57756, 72195, 77008, 91447, 96260, 115512, 144390, 182894, 192520, 231024, 274341, 288780, 365788, 385040, 457235, 548682, 577560, 731576, 914470, 1097364, 1155120, 1371705, 1463152, 1828940, 2194728, 2743410, 3657880, 4389456, 5486820, 7315760, 10973640, 21947280]

約数ペア:

[(1, 21947280), (2, 10973640), (3, 7315760), (4, 5486820), (5, 4389456), (6, 3657880), (8, 2743410), (10, 2194728), (12, 1828940), (15, 1463152), (16, 1371705), (19, 1155120), (20, 1097364), (24, 914470), (30, 731576), (38, 577560), (40, 548682), (48, 457235), (57, 385040), (60, 365788), (76, 288780), (80, 274341), (95, 231024), (114, 192520), (120, 182894), (152, 144390), (190, 115512), (228, 96260), (240, 91447), (285, 77008), (304, 72195), (380, 57756), (456, 48130), (570, 38504), (760, 28878), (912, 24065), (1140, 19252), (1520, 14439), (2280, 9626), (4560, 4813)]