87721760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:263

約数の個数: 144

約数和(自身を含む): 246141504

約数和(自身を除く): 158419744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 67, 70, 80, 98, 112, 134, 140, 160, 167, 196, 224, 245, 268, 280, 334, 335, 392, 469, 490, 536, 560, 668, 670, 784, 835, 938, 980, 1072, 1120, 1169, 1336, 1340, 1568, 1670, 1876, 1960, 2144, 2338, 2345, 2672, 2680, 3283, 3340, 3752, 3920, 4676, 4690, 5344, 5360, 5845, 6566, 6680, 7504, 7840, 8183, 9352, 9380, 10720, 11189, 11690, 13132, 13360, 15008, 16366, 16415, 18704, 18760, 22378, 23380, 26264, 26720, 32732, 32830, 37408, 37520, 40915, 44756, 46760, 52528, 55945, 65464, 65660, 75040, 78323, 81830, 89512, 93520, 105056, 111890, 130928, 131320, 156646, 163660, 179024, 187040, 223780, 261856, 262640, 313292, 327320, 358048, 391615, 447560, 525280, 548261, 626584, 654640, 783230, 895120, 1096522, 1253168, 1309280, 1566460, 1790240, 2193044, 2506336, 2741305, 3132920, 4386088, 5482610, 6265840, 8772176, 10965220, 12531680, 17544352, 21930440, 43860880, 87721760]

約数ペア:

[(1, 87721760), (2, 43860880), (4, 21930440), (5, 17544352), (7, 12531680), (8, 10965220), (10, 8772176), (14, 6265840), (16, 5482610), (20, 4386088), (28, 3132920), (32, 2741305), (35, 2506336), (40, 2193044), (49, 1790240), (56, 1566460), (67, 1309280), (70, 1253168), (80, 1096522), (98, 895120), (112, 783230), (134, 654640), (140, 626584), (160, 548261), (167, 525280), (196, 447560), (224, 391615), (245, 358048), (268, 327320), (280, 313292), (334, 262640), (335, 261856), (392, 223780), (469, 187040), (490, 179024), (536, 163660), (560, 156646), (668, 131320), (670, 130928), (784, 111890), (835, 105056), (938, 93520), (980, 89512), (1072, 81830), (1120, 78323), (1169, 75040), (1336, 65660), (1340, 65464), (1568, 55945), (1670, 52528), (1876, 46760), (1960, 44756), (2144, 40915), (2338, 37520), (2345, 37408), (2672, 32830), (2680, 32732), (3283, 26720), (3340, 26264), (3752, 23380), (3920, 22378), (4676, 18760), (4690, 18704), (5344, 16415), (5360, 16366), (5845, 15008), (6566, 13360), (6680, 13132), (7504, 11690), (7840, 11189), (8183, 10720), (9352, 9380)]