18772000

素因数分解:

$2^5\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:76

約数の個数: 144

約数和(自身を含む): 52422552

約数和(自身を除く): 33650552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 125, 130, 152, 160, 190, 200, 208, 247, 250, 260, 304, 325, 361, 380, 400, 416, 475, 494, 500, 520, 608, 650, 722, 760, 800, 950, 988, 1000, 1040, 1235, 1300, 1444, 1520, 1625, 1805, 1900, 1976, 2000, 2080, 2375, 2470, 2600, 2888, 3040, 3250, 3610, 3800, 3952, 4000, 4693, 4750, 4940, 5200, 5776, 6175, 6500, 7220, 7600, 7904, 9025, 9386, 9500, 9880, 10400, 11552, 12350, 13000, 14440, 15200, 18050, 18772, 19000, 19760, 23465, 24700, 26000, 28880, 30875, 36100, 37544, 38000, 39520, 45125, 46930, 49400, 52000, 57760, 61750, 72200, 75088, 76000, 90250, 93860, 98800, 117325, 123500, 144400, 150176, 180500, 187720, 197600, 234650, 247000, 288800, 361000, 375440, 469300, 494000, 586625, 722000, 750880, 938600, 988000, 1173250, 1444000, 1877200, 2346500, 3754400, 4693000, 9386000, 18772000]

約数ペア:

[(1, 18772000), (2, 9386000), (4, 4693000), (5, 3754400), (8, 2346500), (10, 1877200), (13, 1444000), (16, 1173250), (19, 988000), (20, 938600), (25, 750880), (26, 722000), (32, 586625), (38, 494000), (40, 469300), (50, 375440), (52, 361000), (65, 288800), (76, 247000), (80, 234650), (95, 197600), (100, 187720), (104, 180500), (125, 150176), (130, 144400), (152, 123500), (160, 117325), (190, 98800), (200, 93860), (208, 90250), (247, 76000), (250, 75088), (260, 72200), (304, 61750), (325, 57760), (361, 52000), (380, 49400), (400, 46930), (416, 45125), (475, 39520), (494, 38000), (500, 37544), (520, 36100), (608, 30875), (650, 28880), (722, 26000), (760, 24700), (800, 23465), (950, 19760), (988, 19000), (1000, 18772), (1040, 18050), (1235, 15200), (1300, 14440), (1444, 13000), (1520, 12350), (1625, 11552), (1805, 10400), (1900, 9880), (1976, 9500), (2000, 9386), (2080, 9025), (2375, 7904), (2470, 7600), (2600, 7220), (2888, 6500), (3040, 6175), (3250, 5776), (3610, 5200), (3800, 4940), (3952, 4750), (4000, 4693)]