31801810

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 58423680

約数和(自身を除く): 26621870

約数列:

[1, 2, 5, 10, 137, 139, 167, 274, 278, 334, 685, 695, 835, 1370, 1390, 1670, 19043, 22879, 23213, 38086, 45758, 46426, 95215, 114395, 116065, 190430, 228790, 232130, 3180181, 6360362, 15900905, 31801810]

約数ペア:

[(1, 31801810), (2, 15900905), (5, 6360362), (10, 3180181), (137, 232130), (139, 228790), (167, 190430), (274, 116065), (278, 114395), (334, 95215), (685, 46426), (695, 45758), (835, 38086), (1370, 23213), (1390, 22879), (1670, 19043)]