1900756720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{579499}}^1$

素因数の和:579553

約数の個数: 40

約数和(自身を含む): 4527054000

約数和(自身を除く): 2626297280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 579499, 1158998, 2317996, 2897495, 4635992, 5794990, 9271984, 11589980, 23179960, 23759459, 46359920, 47518918, 95037836, 118797295, 190075672, 237594590, 380151344, 475189180, 950378360, 1900756720]

約数ペア:

[(1, 1900756720), (2, 950378360), (4, 475189180), (5, 380151344), (8, 237594590), (10, 190075672), (16, 118797295), (20, 95037836), (40, 47518918), (41, 46359920), (80, 23759459), (82, 23179960), (164, 11589980), (205, 9271984), (328, 5794990), (410, 4635992), (656, 2897495), (820, 2317996), (1640, 1158998), (3280, 579499)]