21443280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1901}}^1$

素因数の和:1964

約数の個数: 80

約数和(自身を含む): 67924224

約数和(自身を除く): 46480944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1880, 1901, 2256, 2820, 3760, 3802, 5640, 5703, 7604, 9505, 11280, 11406, 15208, 19010, 22812, 28515, 30416, 38020, 45624, 57030, 76040, 89347, 91248, 114060, 152080, 178694, 228120, 268041, 357388, 446735, 456240, 536082, 714776, 893470, 1072164, 1340205, 1429552, 1786940, 2144328, 2680410, 3573880, 4288656, 5360820, 7147760, 10721640, 21443280]

約数ペア:

[(1, 21443280), (2, 10721640), (3, 7147760), (4, 5360820), (5, 4288656), (6, 3573880), (8, 2680410), (10, 2144328), (12, 1786940), (15, 1429552), (16, 1340205), (20, 1072164), (24, 893470), (30, 714776), (40, 536082), (47, 456240), (48, 446735), (60, 357388), (80, 268041), (94, 228120), (120, 178694), (141, 152080), (188, 114060), (235, 91248), (240, 89347), (282, 76040), (376, 57030), (470, 45624), (564, 38020), (705, 30416), (752, 28515), (940, 22812), (1128, 19010), (1410, 15208), (1880, 11406), (1901, 11280), (2256, 9505), (2820, 7604), (3760, 5703), (3802, 5640)]