12131120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 31069440

約数和(自身を除く): 18938320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 38, 40, 46, 76, 80, 92, 95, 115, 152, 184, 190, 230, 304, 347, 368, 380, 437, 460, 694, 760, 874, 920, 1388, 1520, 1735, 1748, 1840, 2185, 2776, 3470, 3496, 4370, 5552, 6593, 6940, 6992, 7981, 8740, 13186, 13880, 15962, 17480, 26372, 27760, 31924, 32965, 34960, 39905, 52744, 63848, 65930, 79810, 105488, 127696, 131860, 151639, 159620, 263720, 303278, 319240, 527440, 606556, 638480, 758195, 1213112, 1516390, 2426224, 3032780, 6065560, 12131120]

約数ペア:

[(1, 12131120), (2, 6065560), (4, 3032780), (5, 2426224), (8, 1516390), (10, 1213112), (16, 758195), (19, 638480), (20, 606556), (23, 527440), (38, 319240), (40, 303278), (46, 263720), (76, 159620), (80, 151639), (92, 131860), (95, 127696), (115, 105488), (152, 79810), (184, 65930), (190, 63848), (230, 52744), (304, 39905), (347, 34960), (368, 32965), (380, 31924), (437, 27760), (460, 26372), (694, 17480), (760, 15962), (874, 13880), (920, 13186), (1388, 8740), (1520, 7981), (1735, 6992), (1748, 6940), (1840, 6593), (2185, 5552), (2776, 4370), (3470, 3496)]