205657720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{7211}}^1$

素因数の和:7276

約数の個数: 64

約数和(自身を含む): 498493440

約数和(自身を除く): 292835720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 920, 1240, 1426, 2852, 3565, 5704, 7130, 7211, 14260, 14422, 28520, 28844, 36055, 57688, 72110, 144220, 165853, 223541, 288440, 331706, 447082, 663412, 829265, 894164, 1117705, 1326824, 1658530, 1788328, 2235410, 3317060, 4470820, 5141443, 6634120, 8941640, 10282886, 20565772, 25707215, 41131544, 51414430, 102828860, 205657720]

約数ペア:

[(1, 205657720), (2, 102828860), (4, 51414430), (5, 41131544), (8, 25707215), (10, 20565772), (20, 10282886), (23, 8941640), (31, 6634120), (40, 5141443), (46, 4470820), (62, 3317060), (92, 2235410), (115, 1788328), (124, 1658530), (155, 1326824), (184, 1117705), (230, 894164), (248, 829265), (310, 663412), (460, 447082), (620, 331706), (713, 288440), (920, 223541), (1240, 165853), (1426, 144220), (2852, 72110), (3565, 57688), (5704, 36055), (7130, 28844), (7211, 28520), (14260, 14422)]