84876800

素因数分解:

$2^9\times 5^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:396

約数の個数: 120

約数和(自身を含む): 221991000

約数和(自身を除く): 137114200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 128, 152, 160, 190, 200, 256, 304, 320, 349, 380, 400, 475, 512, 608, 640, 698, 760, 800, 950, 1216, 1280, 1396, 1520, 1600, 1745, 1900, 2432, 2560, 2792, 3040, 3200, 3490, 3800, 4864, 5584, 6080, 6400, 6631, 6980, 7600, 8725, 9728, 11168, 12160, 12800, 13262, 13960, 15200, 17450, 22336, 24320, 26524, 27920, 30400, 33155, 34900, 44672, 48640, 53048, 55840, 60800, 66310, 69800, 89344, 106096, 111680, 121600, 132620, 139600, 165775, 178688, 212192, 223360, 243200, 265240, 279200, 331550, 424384, 446720, 530480, 558400, 663100, 848768, 893440, 1060960, 1116800, 1326200, 1697536, 2121920, 2233600, 2652400, 3395072, 4243840, 4467200, 5304800, 8487680, 10609600, 16975360, 21219200, 42438400, 84876800]

約数ペア:

[(1, 84876800), (2, 42438400), (4, 21219200), (5, 16975360), (8, 10609600), (10, 8487680), (16, 5304800), (19, 4467200), (20, 4243840), (25, 3395072), (32, 2652400), (38, 2233600), (40, 2121920), (50, 1697536), (64, 1326200), (76, 1116800), (80, 1060960), (95, 893440), (100, 848768), (128, 663100), (152, 558400), (160, 530480), (190, 446720), (200, 424384), (256, 331550), (304, 279200), (320, 265240), (349, 243200), (380, 223360), (400, 212192), (475, 178688), (512, 165775), (608, 139600), (640, 132620), (698, 121600), (760, 111680), (800, 106096), (950, 89344), (1216, 69800), (1280, 66310), (1396, 60800), (1520, 55840), (1600, 53048), (1745, 48640), (1900, 44672), (2432, 34900), (2560, 33155), (2792, 30400), (3040, 27920), (3200, 26524), (3490, 24320), (3800, 22336), (4864, 17450), (5584, 15200), (6080, 13960), (6400, 13262), (6631, 12800), (6980, 12160), (7600, 11168), (8725, 9728)]