1787621920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{228013}}^1$

素因数の和:228042

約数の個数: 72

約数和(自身を含む): 4912789644

約数和(自身を除く): 3125167724

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 228013, 456026, 912052, 1140065, 1596091, 1824104, 2280130, 3192182, 3648208, 4560260, 6384364, 7296416, 7980455, 9120520, 11172637, 12768728, 15960910, 18241040, 22345274, 25537456, 31921820, 36482080, 44690548, 51074912, 55863185, 63843640, 89381096, 111726370, 127687280, 178762192, 223452740, 255374560, 357524384, 446905480, 893810960, 1787621920]

約数ペア:

[(1, 1787621920), (2, 893810960), (4, 446905480), (5, 357524384), (7, 255374560), (8, 223452740), (10, 178762192), (14, 127687280), (16, 111726370), (20, 89381096), (28, 63843640), (32, 55863185), (35, 51074912), (40, 44690548), (49, 36482080), (56, 31921820), (70, 25537456), (80, 22345274), (98, 18241040), (112, 15960910), (140, 12768728), (160, 11172637), (196, 9120520), (224, 7980455), (245, 7296416), (280, 6384364), (392, 4560260), (490, 3648208), (560, 3192182), (784, 2280130), (980, 1824104), (1120, 1596091), (1568, 1140065), (1960, 912052), (3920, 456026), (7840, 228013)]