18550280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{683}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 48263040

約数和(自身を除く): 29712760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 683, 776, 970, 1358, 1366, 1940, 2716, 2732, 3395, 3415, 3880, 4781, 5432, 5464, 6790, 6830, 9562, 13580, 13660, 19124, 23905, 27160, 27320, 38248, 47810, 66251, 95620, 132502, 191240, 265004, 331255, 463757, 530008, 662510, 927514, 1325020, 1855028, 2318785, 2650040, 3710056, 4637570, 9275140, 18550280]

約数ペア:

[(1, 18550280), (2, 9275140), (4, 4637570), (5, 3710056), (7, 2650040), (8, 2318785), (10, 1855028), (14, 1325020), (20, 927514), (28, 662510), (35, 530008), (40, 463757), (56, 331255), (70, 265004), (97, 191240), (140, 132502), (194, 95620), (280, 66251), (388, 47810), (485, 38248), (679, 27320), (683, 27160), (776, 23905), (970, 19124), (1358, 13660), (1366, 13580), (1940, 9562), (2716, 6830), (2732, 6790), (3395, 5464), (3415, 5432), (3880, 4781)]