398492080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3191}}^1$

素因数の和:3434

約数の個数: 80

約数和(自身を含む): 1063931904

約数和(自身を除く): 665439824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 223, 280, 446, 560, 892, 1115, 1561, 1784, 2230, 3122, 3191, 3568, 4460, 6244, 6382, 7805, 8920, 12488, 12764, 15610, 15955, 17840, 22337, 24976, 25528, 31220, 31910, 44674, 51056, 62440, 63820, 89348, 111685, 124880, 127640, 178696, 223370, 255280, 357392, 446740, 711593, 893480, 1423186, 1786960, 2846372, 3557965, 4981151, 5692744, 7115930, 9962302, 11385488, 14231860, 19924604, 24905755, 28463720, 39849208, 49811510, 56927440, 79698416, 99623020, 199246040, 398492080]

約数ペア:

[(1, 398492080), (2, 199246040), (4, 99623020), (5, 79698416), (7, 56927440), (8, 49811510), (10, 39849208), (14, 28463720), (16, 24905755), (20, 19924604), (28, 14231860), (35, 11385488), (40, 9962302), (56, 7115930), (70, 5692744), (80, 4981151), (112, 3557965), (140, 2846372), (223, 1786960), (280, 1423186), (446, 893480), (560, 711593), (892, 446740), (1115, 357392), (1561, 255280), (1784, 223370), (2230, 178696), (3122, 127640), (3191, 124880), (3568, 111685), (4460, 89348), (6244, 63820), (6382, 62440), (7805, 51056), (8920, 44674), (12488, 31910), (12764, 31220), (15610, 25528), (15955, 24976), (17840, 22337)]