21618800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{1103}}^1$

素因数の和:1135

約数の個数: 90

約数和(自身を含む): 60473808

約数和(自身を除く): 38855008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1103, 1225, 1400, 1960, 2206, 2450, 2800, 3920, 4412, 4900, 5515, 7721, 8824, 9800, 11030, 15442, 17648, 19600, 22060, 27575, 30884, 38605, 44120, 54047, 55150, 61768, 77210, 88240, 108094, 110300, 123536, 154420, 193025, 216188, 220600, 270235, 308840, 386050, 432376, 441200, 540470, 617680, 772100, 864752, 1080940, 1351175, 1544200, 2161880, 2702350, 3088400, 4323760, 5404700, 10809400, 21618800]

約数ペア:

[(1, 21618800), (2, 10809400), (4, 5404700), (5, 4323760), (7, 3088400), (8, 2702350), (10, 2161880), (14, 1544200), (16, 1351175), (20, 1080940), (25, 864752), (28, 772100), (35, 617680), (40, 540470), (49, 441200), (50, 432376), (56, 386050), (70, 308840), (80, 270235), (98, 220600), (100, 216188), (112, 193025), (140, 154420), (175, 123536), (196, 110300), (200, 108094), (245, 88240), (280, 77210), (350, 61768), (392, 55150), (400, 54047), (490, 44120), (560, 38605), (700, 30884), (784, 27575), (980, 22060), (1103, 19600), (1225, 17648), (1400, 15442), (1960, 11030), (2206, 9800), (2450, 8824), (2800, 7721), (3920, 5515), (4412, 4900)]