138241640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{22013}}^1$

素因数の和:22181

約数の個数: 32

約数和(自身を含む): 313039080

約数和(自身を除く): 174797440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 22013, 44026, 88052, 110065, 176104, 220130, 440260, 880520, 3456041, 6912082, 13824164, 17280205, 27648328, 34560410, 69120820, 138241640]

約数ペア:

[(1, 138241640), (2, 69120820), (4, 34560410), (5, 27648328), (8, 17280205), (10, 13824164), (20, 6912082), (40, 3456041), (157, 880520), (314, 440260), (628, 220130), (785, 176104), (1256, 110065), (1570, 88052), (3140, 44026), (6280, 22013)]