311051660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{1277}}^1$

素因数の和:1946

約数の個数: 48

約数和(自身を含む): 689199840

約数和(自身を除く): 378148180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 641, 1277, 1282, 2554, 2564, 3205, 5108, 6385, 6410, 12179, 12770, 12820, 24263, 24358, 25540, 48526, 48716, 60895, 97052, 121315, 121790, 242630, 243580, 485260, 818557, 1637114, 3274228, 4092785, 8185570, 15552583, 16371140, 31105166, 62210332, 77762915, 155525830, 311051660]

約数ペア:

[(1, 311051660), (2, 155525830), (4, 77762915), (5, 62210332), (10, 31105166), (19, 16371140), (20, 15552583), (38, 8185570), (76, 4092785), (95, 3274228), (190, 1637114), (380, 818557), (641, 485260), (1277, 243580), (1282, 242630), (2554, 121790), (2564, 121315), (3205, 97052), (5108, 60895), (6385, 48716), (6410, 48526), (12179, 25540), (12770, 24358), (12820, 24263)]