18327760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:436

約数の個数: 80

約数和(自身を含む): 47407680

約数和(自身を除く): 29079920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 353, 440, 472, 590, 649, 706, 880, 944, 1180, 1298, 1412, 1765, 2360, 2596, 2824, 3245, 3530, 3883, 4720, 5192, 5648, 6490, 7060, 7766, 10384, 12980, 14120, 15532, 19415, 20827, 25960, 28240, 31064, 38830, 41654, 51920, 62128, 77660, 83308, 104135, 155320, 166616, 208270, 229097, 310640, 333232, 416540, 458194, 833080, 916388, 1145485, 1666160, 1832776, 2290970, 3665552, 4581940, 9163880, 18327760]

約数ペア:

[(1, 18327760), (2, 9163880), (4, 4581940), (5, 3665552), (8, 2290970), (10, 1832776), (11, 1666160), (16, 1145485), (20, 916388), (22, 833080), (40, 458194), (44, 416540), (55, 333232), (59, 310640), (80, 229097), (88, 208270), (110, 166616), (118, 155320), (176, 104135), (220, 83308), (236, 77660), (295, 62128), (353, 51920), (440, 41654), (472, 38830), (590, 31064), (649, 28240), (706, 25960), (880, 20827), (944, 19415), (1180, 15532), (1298, 14120), (1412, 12980), (1765, 10384), (2360, 7766), (2596, 7060), (2824, 6490), (3245, 5648), (3530, 5192), (3883, 4720)]