81814000

素因数分解:

$2^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2153}}^1$

素因数の和:2195

約数の個数: 80

約数和(自身を含む): 208334880

約数和(自身を除く): 126520880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 250, 304, 380, 400, 475, 500, 760, 950, 1000, 1520, 1900, 2000, 2153, 2375, 3800, 4306, 4750, 7600, 8612, 9500, 10765, 17224, 19000, 21530, 34448, 38000, 40907, 43060, 53825, 81814, 86120, 107650, 163628, 172240, 204535, 215300, 269125, 327256, 409070, 430600, 538250, 654512, 818140, 861200, 1022675, 1076500, 1636280, 2045350, 2153000, 3272560, 4090700, 4306000, 5113375, 8181400, 10226750, 16362800, 20453500, 40907000, 81814000]

約数ペア:

[(1, 81814000), (2, 40907000), (4, 20453500), (5, 16362800), (8, 10226750), (10, 8181400), (16, 5113375), (19, 4306000), (20, 4090700), (25, 3272560), (38, 2153000), (40, 2045350), (50, 1636280), (76, 1076500), (80, 1022675), (95, 861200), (100, 818140), (125, 654512), (152, 538250), (190, 430600), (200, 409070), (250, 327256), (304, 269125), (380, 215300), (400, 204535), (475, 172240), (500, 163628), (760, 107650), (950, 86120), (1000, 81814), (1520, 53825), (1900, 43060), (2000, 40907), (2153, 38000), (2375, 34448), (3800, 21530), (4306, 19000), (4750, 17224), (7600, 10765), (8612, 9500)]