20199666400

素因数分解:

$2^5\times 5^2\times {\mathrm{25249583}}^1$

素因数の和:25249603

約数の個数: 36

約数和(自身を含む): 49312437552

約数和(自身を除く): 29112771152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 25249583, 50499166, 100998332, 126247915, 201996664, 252495830, 403993328, 504991660, 631239575, 807986656, 1009983320, 1262479150, 2019966640, 2524958300, 4039933280, 5049916600, 10099833200, 20199666400]

約数ペア:

[(1, 20199666400), (2, 10099833200), (4, 5049916600), (5, 4039933280), (8, 2524958300), (10, 2019966640), (16, 1262479150), (20, 1009983320), (25, 807986656), (32, 631239575), (40, 504991660), (50, 403993328), (80, 252495830), (100, 201996664), (160, 126247915), (200, 100998332), (400, 50499166), (800, 25249583)]