18104538820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1\times {\mathrm{37013}}^1$

素因数の和:37720

約数の個数: 48

約数和(自身を含む): 39107215728

約数和(自身を除く): 21002676908

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 661, 740, 1322, 2644, 3305, 6610, 13220, 24457, 37013, 48914, 74026, 97828, 122285, 148052, 185065, 244570, 370130, 489140, 740260, 1369481, 2738962, 5477924, 6847405, 13694810, 24465593, 27389620, 48931186, 97862372, 122327965, 244655930, 489311860, 905226941, 1810453882, 3620907764, 4526134705, 9052269410, 18104538820]

約数ペア:

[(1, 18104538820), (2, 9052269410), (4, 4526134705), (5, 3620907764), (10, 1810453882), (20, 905226941), (37, 489311860), (74, 244655930), (148, 122327965), (185, 97862372), (370, 48931186), (661, 27389620), (740, 24465593), (1322, 13694810), (2644, 6847405), (3305, 5477924), (6610, 2738962), (13220, 1369481), (24457, 740260), (37013, 489140), (48914, 370130), (74026, 244570), (97828, 185065), (122285, 148052)]