18526640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 48345120

約数和(自身を除く): 29818480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 55, 74, 80, 88, 110, 148, 176, 185, 220, 296, 370, 407, 440, 569, 592, 740, 814, 880, 1138, 1480, 1628, 2035, 2276, 2845, 2960, 3256, 4070, 4552, 5690, 6259, 6512, 8140, 9104, 11380, 12518, 16280, 21053, 22760, 25036, 31295, 32560, 42106, 45520, 50072, 62590, 84212, 100144, 105265, 125180, 168424, 210530, 231583, 250360, 336848, 421060, 463166, 500720, 842120, 926332, 1157915, 1684240, 1852664, 2315830, 3705328, 4631660, 9263320, 18526640]

約数ペア:

[(1, 18526640), (2, 9263320), (4, 4631660), (5, 3705328), (8, 2315830), (10, 1852664), (11, 1684240), (16, 1157915), (20, 926332), (22, 842120), (37, 500720), (40, 463166), (44, 421060), (55, 336848), (74, 250360), (80, 231583), (88, 210530), (110, 168424), (148, 125180), (176, 105265), (185, 100144), (220, 84212), (296, 62590), (370, 50072), (407, 45520), (440, 42106), (569, 32560), (592, 31295), (740, 25036), (814, 22760), (880, 21053), (1138, 16280), (1480, 12518), (1628, 11380), (2035, 9104), (2276, 8140), (2845, 6512), (2960, 6259), (3256, 5690), (4070, 4552)]