87871960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:521

約数の個数: 128

約数和(自身を含む): 237427200

約数和(自身を除く): 149555240

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 23, 38, 40, 44, 46, 55, 76, 88, 92, 95, 110, 115, 152, 184, 190, 209, 220, 230, 253, 380, 418, 437, 440, 457, 460, 506, 760, 836, 874, 914, 920, 1012, 1045, 1265, 1672, 1748, 1828, 2024, 2090, 2185, 2285, 2530, 3496, 3656, 4180, 4370, 4570, 4807, 5027, 5060, 8360, 8683, 8740, 9140, 9614, 10054, 10120, 10511, 17366, 17480, 18280, 19228, 20108, 21022, 24035, 25135, 34732, 38456, 40216, 42044, 43415, 48070, 50270, 52555, 69464, 84088, 86830, 95513, 96140, 100540, 105110, 115621, 173660, 191026, 192280, 199709, 201080, 210220, 231242, 347320, 382052, 399418, 420440, 462484, 477565, 578105, 764104, 798836, 924968, 955130, 998545, 1156210, 1597672, 1910260, 1997090, 2196799, 2312420, 3820520, 3994180, 4393598, 4624840, 7988360, 8787196, 10983995, 17574392, 21967990, 43935980, 87871960]

約数ペア:

[(1, 87871960), (2, 43935980), (4, 21967990), (5, 17574392), (8, 10983995), (10, 8787196), (11, 7988360), (19, 4624840), (20, 4393598), (22, 3994180), (23, 3820520), (38, 2312420), (40, 2196799), (44, 1997090), (46, 1910260), (55, 1597672), (76, 1156210), (88, 998545), (92, 955130), (95, 924968), (110, 798836), (115, 764104), (152, 578105), (184, 477565), (190, 462484), (209, 420440), (220, 399418), (230, 382052), (253, 347320), (380, 231242), (418, 210220), (437, 201080), (440, 199709), (457, 192280), (460, 191026), (506, 173660), (760, 115621), (836, 105110), (874, 100540), (914, 96140), (920, 95513), (1012, 86830), (1045, 84088), (1265, 69464), (1672, 52555), (1748, 50270), (1828, 48070), (2024, 43415), (2090, 42044), (2185, 40216), (2285, 38456), (2530, 34732), (3496, 25135), (3656, 24035), (4180, 21022), (4370, 20108), (4570, 19228), (4807, 18280), (5027, 17480), (5060, 17366), (8360, 10511), (8683, 10120), (8740, 10054), (9140, 9614)]