72413440

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 195733440

約数和(自身を除く): 123320000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 88, 110, 128, 139, 148, 160, 176, 185, 220, 256, 278, 296, 320, 352, 370, 407, 440, 556, 592, 640, 695, 704, 740, 814, 880, 1112, 1184, 1280, 1390, 1408, 1480, 1529, 1628, 1760, 2035, 2224, 2368, 2780, 2816, 2960, 3058, 3256, 3520, 4070, 4448, 4736, 5143, 5560, 5920, 6116, 6512, 7040, 7645, 8140, 8896, 9472, 10286, 11120, 11840, 12232, 13024, 14080, 15290, 16280, 17792, 20572, 22240, 23680, 24464, 25715, 26048, 30580, 32560, 35584, 41144, 44480, 47360, 48928, 51430, 52096, 56573, 61160, 65120, 82288, 88960, 97856, 102860, 104192, 113146, 122320, 130240, 164576, 177920, 195712, 205720, 226292, 244640, 260480, 282865, 329152, 391424, 411440, 452584, 489280, 520960, 565730, 658304, 822880, 905168, 978560, 1131460, 1316608, 1645760, 1810336, 1957120, 2262920, 3291520, 3620672, 4525840, 6583040, 7241344, 9051680, 14482688, 18103360, 36206720, 72413440]

約数ペア:

[(1, 72413440), (2, 36206720), (4, 18103360), (5, 14482688), (8, 9051680), (10, 7241344), (11, 6583040), (16, 4525840), (20, 3620672), (22, 3291520), (32, 2262920), (37, 1957120), (40, 1810336), (44, 1645760), (55, 1316608), (64, 1131460), (74, 978560), (80, 905168), (88, 822880), (110, 658304), (128, 565730), (139, 520960), (148, 489280), (160, 452584), (176, 411440), (185, 391424), (220, 329152), (256, 282865), (278, 260480), (296, 244640), (320, 226292), (352, 205720), (370, 195712), (407, 177920), (440, 164576), (556, 130240), (592, 122320), (640, 113146), (695, 104192), (704, 102860), (740, 97856), (814, 88960), (880, 82288), (1112, 65120), (1184, 61160), (1280, 56573), (1390, 52096), (1408, 51430), (1480, 48928), (1529, 47360), (1628, 44480), (1760, 41144), (2035, 35584), (2224, 32560), (2368, 30580), (2780, 26048), (2816, 25715), (2960, 24464), (3058, 23680), (3256, 22240), (3520, 20572), (4070, 17792), (4448, 16280), (4736, 15290), (5143, 14080), (5560, 13024), (5920, 12232), (6116, 11840), (6512, 11120), (7040, 10286), (7645, 9472), (8140, 8896)]