11815540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 27720000

約数和(自身を除く): 15904460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1249, 1892, 2365, 2498, 4730, 4996, 6245, 9460, 12490, 13739, 24980, 27478, 53707, 54956, 68695, 107414, 137390, 214828, 268535, 274780, 537070, 590777, 1074140, 1181554, 2363108, 2953885, 5907770, 11815540]

約数ペア:

[(1, 11815540), (2, 5907770), (4, 2953885), (5, 2363108), (10, 1181554), (11, 1074140), (20, 590777), (22, 537070), (43, 274780), (44, 268535), (55, 214828), (86, 137390), (110, 107414), (172, 68695), (215, 54956), (220, 53707), (430, 27478), (473, 24980), (860, 13739), (946, 12490), (1249, 9460), (1892, 6245), (2365, 4996), (2498, 4730)]