20000016

素因数分解:

$2^4\times 3^2\times {\mathrm{138889}}^1$

素因数の和:138903

約数の個数: 30

約数和(自身を含む): 55972670

約数和(自身を除く): 35972654

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138889, 277778, 416667, 555556, 833334, 1111112, 1250001, 1666668, 2222224, 2500002, 3333336, 5000004, 6666672, 10000008, 20000016]

約数ペア:

[(1, 20000016), (2, 10000008), (3, 6666672), (4, 5000004), (6, 3333336), (8, 2500002), (9, 2222224), (12, 1666668), (16, 1250001), (18, 1111112), (24, 833334), (36, 555556), (48, 416667), (72, 277778), (144, 138889)]