21219200

素因数分解:

$2^7\times 5^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 55335000

約数和(自身を除く): 34115800

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, 304, 320, 349, 380, 400, 475, 608, 640, 698, 760, 800, 950, 1216, 1396, 1520, 1600, 1745, 1900, 2432, 2792, 3040, 3200, 3490, 3800, 5584, 6080, 6631, 6980, 7600, 8725, 11168, 12160, 13262, 13960, 15200, 17450, 22336, 26524, 27920, 30400, 33155, 34900, 44672, 53048, 55840, 60800, 66310, 69800, 106096, 111680, 132620, 139600, 165775, 212192, 223360, 265240, 279200, 331550, 424384, 530480, 558400, 663100, 848768, 1060960, 1116800, 1326200, 2121920, 2652400, 4243840, 5304800, 10609600, 21219200]

約数ペア:

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