18973900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 45997056

約数和(自身を除く): 27023156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 94, 100, 110, 188, 220, 235, 275, 367, 470, 517, 550, 734, 940, 1034, 1100, 1175, 1468, 1835, 2068, 2350, 2585, 3670, 4037, 4700, 5170, 7340, 8074, 9175, 10340, 12925, 16148, 17249, 18350, 20185, 25850, 34498, 36700, 40370, 51700, 68996, 80740, 86245, 100925, 172490, 189739, 201850, 344980, 379478, 403700, 431225, 758956, 862450, 948695, 1724900, 1897390, 3794780, 4743475, 9486950, 18973900]

約数ペア:

[(1, 18973900), (2, 9486950), (4, 4743475), (5, 3794780), (10, 1897390), (11, 1724900), (20, 948695), (22, 862450), (25, 758956), (44, 431225), (47, 403700), (50, 379478), (55, 344980), (94, 201850), (100, 189739), (110, 172490), (188, 100925), (220, 86245), (235, 80740), (275, 68996), (367, 51700), (470, 40370), (517, 36700), (550, 34498), (734, 25850), (940, 20185), (1034, 18350), (1100, 17249), (1175, 16148), (1468, 12925), (1835, 10340), (2068, 9175), (2350, 8074), (2585, 7340), (3670, 5170), (4037, 4700)]