423940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 1016064

約数和(自身を除く): 592124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 47, 55, 82, 94, 110, 164, 188, 205, 220, 235, 410, 451, 470, 517, 820, 902, 940, 1034, 1804, 1927, 2068, 2255, 2585, 3854, 4510, 5170, 7708, 9020, 9635, 10340, 19270, 21197, 38540, 42394, 84788, 105985, 211970, 423940]

約数ペア:

[(1, 423940), (2, 211970), (4, 105985), (5, 84788), (10, 42394), (11, 38540), (20, 21197), (22, 19270), (41, 10340), (44, 9635), (47, 9020), (55, 7708), (82, 5170), (94, 4510), (110, 3854), (164, 2585), (188, 2255), (205, 2068), (220, 1927), (235, 1804), (410, 1034), (451, 940), (470, 902), (517, 820)]