31128390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2203}}^1$

素因数の和:2373

約数の個数: 48

約数和(自身を含む): 81486288

約数和(自身を除く): 50357898

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 471, 785, 942, 1413, 1570, 2203, 2355, 2826, 4406, 4710, 6609, 7065, 11015, 13218, 14130, 19827, 22030, 33045, 39654, 66090, 99135, 198270, 345871, 691742, 1037613, 1729355, 2075226, 3112839, 3458710, 5188065, 6225678, 10376130, 15564195, 31128390]

約数ペア:

[(1, 31128390), (2, 15564195), (3, 10376130), (5, 6225678), (6, 5188065), (9, 3458710), (10, 3112839), (15, 2075226), (18, 1729355), (30, 1037613), (45, 691742), (90, 345871), (157, 198270), (314, 99135), (471, 66090), (785, 39654), (942, 33045), (1413, 22030), (1570, 19827), (2203, 14130), (2355, 13218), (2826, 11015), (4406, 7065), (4710, 6609)]