31990480

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13789}}^1$

素因数の和:13831

約数の個数: 40

約数和(自身を含む): 76948200

約数和(自身を除く): 44957720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 13789, 27578, 55156, 68945, 110312, 137890, 220624, 275780, 399881, 551560, 799762, 1103120, 1599524, 1999405, 3199048, 3998810, 6398096, 7997620, 15995240, 31990480]

約数ペア:

[(1, 31990480), (2, 15995240), (4, 7997620), (5, 6398096), (8, 3998810), (10, 3199048), (16, 1999405), (20, 1599524), (29, 1103120), (40, 799762), (58, 551560), (80, 399881), (116, 275780), (145, 220624), (232, 137890), (290, 110312), (464, 68945), (580, 55156), (1160, 27578), (2320, 13789)]