18745480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 47433600

約数和(自身を除く): 28688120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 59, 65, 94, 104, 118, 130, 169, 188, 235, 236, 260, 295, 338, 376, 470, 472, 520, 590, 611, 676, 767, 845, 940, 1180, 1222, 1352, 1534, 1690, 1880, 2360, 2444, 2773, 3055, 3068, 3380, 3835, 4888, 5546, 6110, 6136, 6760, 7670, 7943, 9971, 11092, 12220, 13865, 15340, 15886, 19942, 22184, 24440, 27730, 30680, 31772, 36049, 39715, 39884, 49855, 55460, 63544, 72098, 79430, 79768, 99710, 110920, 144196, 158860, 180245, 199420, 288392, 317720, 360490, 398840, 468637, 720980, 937274, 1441960, 1874548, 2343185, 3749096, 4686370, 9372740, 18745480]

約数ペア:

[(1, 18745480), (2, 9372740), (4, 4686370), (5, 3749096), (8, 2343185), (10, 1874548), (13, 1441960), (20, 937274), (26, 720980), (40, 468637), (47, 398840), (52, 360490), (59, 317720), (65, 288392), (94, 199420), (104, 180245), (118, 158860), (130, 144196), (169, 110920), (188, 99710), (235, 79768), (236, 79430), (260, 72098), (295, 63544), (338, 55460), (376, 49855), (470, 39884), (472, 39715), (520, 36049), (590, 31772), (611, 30680), (676, 27730), (767, 24440), (845, 22184), (940, 19942), (1180, 15886), (1222, 15340), (1352, 13865), (1534, 12220), (1690, 11092), (1880, 9971), (2360, 7943), (2444, 7670), (2773, 6760), (3055, 6136), (3068, 6110), (3380, 5546), (3835, 4888)]