12561840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 120

約数和(自身を含む): 42943680

約数和(自身を除く): 30381840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 73, 80, 90, 120, 144, 146, 180, 219, 239, 240, 292, 360, 365, 438, 478, 584, 657, 717, 720, 730, 876, 956, 1095, 1168, 1195, 1314, 1434, 1460, 1752, 1912, 2151, 2190, 2390, 2628, 2868, 2920, 3285, 3504, 3585, 3824, 4302, 4380, 4780, 5256, 5736, 5840, 6570, 7170, 8604, 8760, 9560, 10512, 10755, 11472, 13140, 14340, 17208, 17447, 17520, 19120, 21510, 26280, 28680, 34416, 34894, 43020, 52341, 52560, 57360, 69788, 86040, 87235, 104682, 139576, 157023, 172080, 174470, 209364, 261705, 279152, 314046, 348940, 418728, 523410, 628092, 697880, 785115, 837456, 1046820, 1256184, 1395760, 1570230, 2093640, 2512368, 3140460, 4187280, 6280920, 12561840]

約数ペア:

[(1, 12561840), (2, 6280920), (3, 4187280), (4, 3140460), (5, 2512368), (6, 2093640), (8, 1570230), (9, 1395760), (10, 1256184), (12, 1046820), (15, 837456), (16, 785115), (18, 697880), (20, 628092), (24, 523410), (30, 418728), (36, 348940), (40, 314046), (45, 279152), (48, 261705), (60, 209364), (72, 174470), (73, 172080), (80, 157023), (90, 139576), (120, 104682), (144, 87235), (146, 86040), (180, 69788), (219, 57360), (239, 52560), (240, 52341), (292, 43020), (360, 34894), (365, 34416), (438, 28680), (478, 26280), (584, 21510), (657, 19120), (717, 17520), (720, 17447), (730, 17208), (876, 14340), (956, 13140), (1095, 11472), (1168, 10755), (1195, 10512), (1314, 9560), (1434, 8760), (1460, 8604), (1752, 7170), (1912, 6570), (2151, 5840), (2190, 5736), (2390, 5256), (2628, 4780), (2868, 4380), (2920, 4302), (3285, 3824), (3504, 3585)]