21769720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 59097600

約数和(自身を除く): 37327880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 56, 58, 70, 98, 116, 140, 145, 196, 203, 232, 245, 280, 290, 383, 392, 406, 490, 580, 766, 812, 980, 1015, 1160, 1421, 1532, 1624, 1915, 1960, 2030, 2681, 2842, 3064, 3830, 4060, 5362, 5684, 7105, 7660, 8120, 10724, 11107, 11368, 13405, 14210, 15320, 18767, 21448, 22214, 26810, 28420, 37534, 44428, 53620, 55535, 56840, 75068, 77749, 88856, 93835, 107240, 111070, 150136, 155498, 187670, 222140, 310996, 375340, 388745, 444280, 544243, 621992, 750680, 777490, 1088486, 1554980, 2176972, 2721215, 3109960, 4353944, 5442430, 10884860, 21769720]

約数ペア:

[(1, 21769720), (2, 10884860), (4, 5442430), (5, 4353944), (7, 3109960), (8, 2721215), (10, 2176972), (14, 1554980), (20, 1088486), (28, 777490), (29, 750680), (35, 621992), (40, 544243), (49, 444280), (56, 388745), (58, 375340), (70, 310996), (98, 222140), (116, 187670), (140, 155498), (145, 150136), (196, 111070), (203, 107240), (232, 93835), (245, 88856), (280, 77749), (290, 75068), (383, 56840), (392, 55535), (406, 53620), (490, 44428), (580, 37534), (766, 28420), (812, 26810), (980, 22214), (1015, 21448), (1160, 18767), (1421, 15320), (1532, 14210), (1624, 13405), (1915, 11368), (1960, 11107), (2030, 10724), (2681, 8120), (2842, 7660), (3064, 7105), (3830, 5684), (4060, 5362)]