40972000

素因数分解:

$2^5\times 5^3\times {\mathrm{10243}}^1$

素因数の和:10268

約数の個数: 48

約数和(自身を含む): 100678032

約数和(自身を除く): 59706032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 10243, 20486, 40972, 51215, 81944, 102430, 163888, 204860, 256075, 327776, 409720, 512150, 819440, 1024300, 1280375, 1638880, 2048600, 2560750, 4097200, 5121500, 8194400, 10243000, 20486000, 40972000]

約数ペア:

[(1, 40972000), (2, 20486000), (4, 10243000), (5, 8194400), (8, 5121500), (10, 4097200), (16, 2560750), (20, 2048600), (25, 1638880), (32, 1280375), (40, 1024300), (50, 819440), (80, 512150), (100, 409720), (125, 327776), (160, 256075), (200, 204860), (250, 163888), (400, 102430), (500, 81944), (800, 51215), (1000, 40972), (2000, 20486), (4000, 10243)]