81450560

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 112

約数和(自身を含む): 205191360

約数和(自身を除く): 123740800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 67, 80, 116, 131, 134, 145, 160, 232, 262, 268, 290, 320, 335, 464, 524, 536, 580, 655, 670, 928, 1048, 1072, 1160, 1310, 1340, 1856, 1943, 2096, 2144, 2320, 2620, 2680, 3799, 3886, 4192, 4288, 4640, 5240, 5360, 7598, 7772, 8384, 8777, 9280, 9715, 10480, 10720, 15196, 15544, 17554, 18995, 19430, 20960, 21440, 30392, 31088, 35108, 37990, 38860, 41920, 43885, 60784, 62176, 70216, 75980, 77720, 87770, 121568, 124352, 140432, 151960, 155440, 175540, 243136, 254533, 280864, 303920, 310880, 351080, 509066, 561728, 607840, 621760, 702160, 1018132, 1215680, 1272665, 1404320, 2036264, 2545330, 2808640, 4072528, 5090660, 8145056, 10181320, 16290112, 20362640, 40725280, 81450560]

約数ペア:

[(1, 81450560), (2, 40725280), (4, 20362640), (5, 16290112), (8, 10181320), (10, 8145056), (16, 5090660), (20, 4072528), (29, 2808640), (32, 2545330), (40, 2036264), (58, 1404320), (64, 1272665), (67, 1215680), (80, 1018132), (116, 702160), (131, 621760), (134, 607840), (145, 561728), (160, 509066), (232, 351080), (262, 310880), (268, 303920), (290, 280864), (320, 254533), (335, 243136), (464, 175540), (524, 155440), (536, 151960), (580, 140432), (655, 124352), (670, 121568), (928, 87770), (1048, 77720), (1072, 75980), (1160, 70216), (1310, 62176), (1340, 60784), (1856, 43885), (1943, 41920), (2096, 38860), (2144, 37990), (2320, 35108), (2620, 31088), (2680, 30392), (3799, 21440), (3886, 20960), (4192, 19430), (4288, 18995), (4640, 17554), (5240, 15544), (5360, 15196), (7598, 10720), (7772, 10480), (8384, 9715), (8777, 9280)]