319973920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{40813}}^1$

素因数の和:40842

約数の個数: 72

約数和(自身を含む): 879378444

約数和(自身を除く): 559404524

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, 40813, 81626, 163252, 204065, 285691, 326504, 408130, 571382, 653008, 816260, 1142764, 1306016, 1428455, 1632520, 1999837, 2285528, 2856910, 3265040, 3999674, 4571056, 5713820, 6530080, 7999348, 9142112, 9999185, 11427640, 15998696, 19998370, 22855280, 31997392, 39996740, 45710560, 63994784, 79993480, 159986960, 319973920]

約数ペア:

[(1, 319973920), (2, 159986960), (4, 79993480), (5, 63994784), (7, 45710560), (8, 39996740), (10, 31997392), (14, 22855280), (16, 19998370), (20, 15998696), (28, 11427640), (32, 9999185), (35, 9142112), (40, 7999348), (49, 6530080), (56, 5713820), (70, 4571056), (80, 3999674), (98, 3265040), (112, 2856910), (140, 2285528), (160, 1999837), (196, 1632520), (224, 1428455), (245, 1306016), (280, 1142764), (392, 816260), (490, 653008), (560, 571382), (784, 408130), (980, 326504), (1120, 285691), (1568, 204065), (1960, 163252), (3920, 81626), (7840, 40813)]