990860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 2323776

約数和(自身を除く): 1332916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 103, 130, 148, 185, 206, 260, 370, 412, 481, 515, 740, 962, 1030, 1339, 1924, 2060, 2405, 2678, 3811, 4810, 5356, 6695, 7622, 9620, 13390, 15244, 19055, 26780, 38110, 49543, 76220, 99086, 198172, 247715, 495430, 990860]

約数ペア:

[(1, 990860), (2, 495430), (4, 247715), (5, 198172), (10, 99086), (13, 76220), (20, 49543), (26, 38110), (37, 26780), (52, 19055), (65, 15244), (74, 13390), (103, 9620), (130, 7622), (148, 6695), (185, 5356), (206, 4810), (260, 3811), (370, 2678), (412, 2405), (481, 2060), (515, 1924), (740, 1339), (962, 1030)]