20688590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3701}}^1$

素因数の和:3764

約数の個数: 32

約数和(自身を含む): 41047776

約数和(自身を除く): 20359186

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3701, 5590, 7402, 18505, 37010, 48113, 96226, 159143, 240565, 318286, 481130, 795715, 1591430, 2068859, 4137718, 10344295, 20688590]

約数ペア:

[(1, 20688590), (2, 10344295), (5, 4137718), (10, 2068859), (13, 1591430), (26, 795715), (43, 481130), (65, 318286), (86, 240565), (130, 159143), (215, 96226), (430, 48113), (559, 37010), (1118, 18505), (2795, 7402), (3701, 5590)]