215020920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 661400640

約数和(自身を除く): 446379720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 113, 120, 157, 202, 226, 303, 314, 339, 404, 452, 471, 505, 565, 606, 628, 678, 785, 808, 904, 942, 1010, 1130, 1212, 1256, 1356, 1515, 1570, 1695, 1884, 2020, 2260, 2355, 2424, 2712, 3030, 3140, 3390, 3768, 4040, 4520, 4710, 6060, 6280, 6780, 9420, 11413, 12120, 13560, 15857, 17741, 18840, 22826, 31714, 34239, 35482, 45652, 47571, 53223, 57065, 63428, 68478, 70964, 79285, 88705, 91304, 95142, 106446, 114130, 126856, 136956, 141928, 158570, 171195, 177410, 190284, 212892, 228260, 237855, 266115, 273912, 317140, 342390, 354820, 380568, 425784, 456520, 475710, 532230, 634280, 684780, 709640, 951420, 1064460, 1369560, 1791841, 1902840, 2128920, 3583682, 5375523, 7167364, 8959205, 10751046, 14334728, 17918410, 21502092, 26877615, 35836820, 43004184, 53755230, 71673640, 107510460, 215020920]

約数ペア:

[(1, 215020920), (2, 107510460), (3, 71673640), (4, 53755230), (5, 43004184), (6, 35836820), (8, 26877615), (10, 21502092), (12, 17918410), (15, 14334728), (20, 10751046), (24, 8959205), (30, 7167364), (40, 5375523), (60, 3583682), (101, 2128920), (113, 1902840), (120, 1791841), (157, 1369560), (202, 1064460), (226, 951420), (303, 709640), (314, 684780), (339, 634280), (404, 532230), (452, 475710), (471, 456520), (505, 425784), (565, 380568), (606, 354820), (628, 342390), (678, 317140), (785, 273912), (808, 266115), (904, 237855), (942, 228260), (1010, 212892), (1130, 190284), (1212, 177410), (1256, 171195), (1356, 158570), (1515, 141928), (1570, 136956), (1695, 126856), (1884, 114130), (2020, 106446), (2260, 95142), (2355, 91304), (2424, 88705), (2712, 79285), (3030, 70964), (3140, 68478), (3390, 63428), (3768, 57065), (4040, 53223), (4520, 47571), (4710, 45652), (6060, 35482), (6280, 34239), (6780, 31714), (9420, 22826), (11413, 18840), (12120, 17741), (13560, 15857)]