440490480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:639

約数の個数: 160

約数和(自身を含む): 1435622400

約数和(自身を除く): 995131920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 199, 230, 240, 276, 345, 368, 398, 401, 460, 552, 597, 690, 796, 802, 920, 995, 1104, 1194, 1203, 1380, 1592, 1604, 1840, 1990, 2005, 2388, 2406, 2760, 2985, 3184, 3208, 3980, 4010, 4577, 4776, 4812, 5520, 5970, 6015, 6416, 7960, 8020, 9154, 9223, 9552, 9624, 11940, 12030, 13731, 15920, 16040, 18308, 18446, 19248, 22885, 23880, 24060, 27462, 27669, 32080, 36616, 36892, 45770, 46115, 47760, 48120, 54924, 55338, 68655, 73232, 73784, 79799, 91540, 92230, 96240, 109848, 110676, 137310, 138345, 147568, 159598, 183080, 184460, 219696, 221352, 239397, 274620, 276690, 319196, 366160, 368920, 398995, 442704, 478794, 549240, 553380, 638392, 737840, 797990, 957588, 1098480, 1106760, 1196985, 1276784, 1595980, 1835377, 1915176, 2213520, 2393970, 3191960, 3670754, 3830352, 4787940, 5506131, 6383920, 7341508, 9176885, 9575880, 11012262, 14683016, 18353770, 19151760, 22024524, 27530655, 29366032, 36707540, 44049048, 55061310, 73415080, 88098096, 110122620, 146830160, 220245240, 440490480]

約数ペア:

[(1, 440490480), (2, 220245240), (3, 146830160), (4, 110122620), (5, 88098096), (6, 73415080), (8, 55061310), (10, 44049048), (12, 36707540), (15, 29366032), (16, 27530655), (20, 22024524), (23, 19151760), (24, 18353770), (30, 14683016), (40, 11012262), (46, 9575880), (48, 9176885), (60, 7341508), (69, 6383920), (80, 5506131), (92, 4787940), (115, 3830352), (120, 3670754), (138, 3191960), (184, 2393970), (199, 2213520), (230, 1915176), (240, 1835377), (276, 1595980), (345, 1276784), (368, 1196985), (398, 1106760), (401, 1098480), (460, 957588), (552, 797990), (597, 737840), (690, 638392), (796, 553380), (802, 549240), (920, 478794), (995, 442704), (1104, 398995), (1194, 368920), (1203, 366160), (1380, 319196), (1592, 276690), (1604, 274620), (1840, 239397), (1990, 221352), (2005, 219696), (2388, 184460), (2406, 183080), (2760, 159598), (2985, 147568), (3184, 138345), (3208, 137310), (3980, 110676), (4010, 109848), (4577, 96240), (4776, 92230), (4812, 91540), (5520, 79799), (5970, 73784), (6015, 73232), (6416, 68655), (7960, 55338), (8020, 54924), (9154, 48120), (9223, 47760), (9552, 46115), (9624, 45770), (11940, 36892), (12030, 36616), (13731, 32080), (15920, 27669), (16040, 27462), (18308, 24060), (18446, 23880), (19248, 22885)]