1325959600

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{67651}}^1$

素因数の和:67683

約数の個数: 90

約数和(自身を含む): 3705773604

約数和(自身を除く): 2379814004

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, 1225, 1400, 1960, 2450, 2800, 3920, 4900, 9800, 19600, 67651, 135302, 270604, 338255, 473557, 541208, 676510, 947114, 1082416, 1353020, 1691275, 1894228, 2367785, 2706040, 3314899, 3382550, 3788456, 4735570, 5412080, 6629798, 6765100, 7576912, 9471140, 11838925, 13259596, 13530200, 16574495, 18942280, 23677850, 26519192, 27060400, 33148990, 37884560, 47355700, 53038384, 66297980, 82872475, 94711400, 132595960, 165744950, 189422800, 265191920, 331489900, 662979800, 1325959600]

約数ペア:

[(1, 1325959600), (2, 662979800), (4, 331489900), (5, 265191920), (7, 189422800), (8, 165744950), (10, 132595960), (14, 94711400), (16, 82872475), (20, 66297980), (25, 53038384), (28, 47355700), (35, 37884560), (40, 33148990), (49, 27060400), (50, 26519192), (56, 23677850), (70, 18942280), (80, 16574495), (98, 13530200), (100, 13259596), (112, 11838925), (140, 9471140), (175, 7576912), (196, 6765100), (200, 6629798), (245, 5412080), (280, 4735570), (350, 3788456), (392, 3382550), (400, 3314899), (490, 2706040), (560, 2367785), (700, 1894228), (784, 1691275), (980, 1353020), (1225, 1082416), (1400, 947114), (1960, 676510), (2450, 541208), (2800, 473557), (3920, 338255), (4900, 270604), (9800, 135302), (19600, 67651)]