621721320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1049}}^1$

素因数の和:1523

約数の個数: 128

約数和(自身を含む): 2041200000

約数和(自身を除く): 1419478680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 449, 660, 898, 1049, 1320, 1347, 1796, 2098, 2245, 2694, 3147, 3592, 4196, 4490, 4939, 5245, 5388, 6294, 6735, 8392, 8980, 9878, 10490, 10776, 11539, 12588, 13470, 14817, 15735, 17960, 19756, 20980, 23078, 24695, 25176, 26940, 29634, 31470, 34617, 39512, 41960, 46156, 49390, 53880, 57695, 59268, 62940, 69234, 74085, 92312, 98780, 115390, 118536, 125880, 138468, 148170, 173085, 197560, 230780, 276936, 296340, 346170, 461560, 471001, 592680, 692340, 942002, 1384680, 1413003, 1884004, 2355005, 2826006, 3768008, 4710010, 5181011, 5652012, 7065015, 9420020, 10362022, 11304024, 14130030, 15543033, 18840040, 20724044, 25905055, 28260060, 31086066, 41448088, 51810110, 56520120, 62172132, 77715165, 103620220, 124344264, 155430330, 207240440, 310860660, 621721320]

約数ペア:

[(1, 621721320), (2, 310860660), (3, 207240440), (4, 155430330), (5, 124344264), (6, 103620220), (8, 77715165), (10, 62172132), (11, 56520120), (12, 51810110), (15, 41448088), (20, 31086066), (22, 28260060), (24, 25905055), (30, 20724044), (33, 18840040), (40, 15543033), (44, 14130030), (55, 11304024), (60, 10362022), (66, 9420020), (88, 7065015), (110, 5652012), (120, 5181011), (132, 4710010), (165, 3768008), (220, 2826006), (264, 2355005), (330, 1884004), (440, 1413003), (449, 1384680), (660, 942002), (898, 692340), (1049, 592680), (1320, 471001), (1347, 461560), (1796, 346170), (2098, 296340), (2245, 276936), (2694, 230780), (3147, 197560), (3592, 173085), (4196, 148170), (4490, 138468), (4939, 125880), (5245, 118536), (5388, 115390), (6294, 98780), (6735, 92312), (8392, 74085), (8980, 69234), (9878, 62940), (10490, 59268), (10776, 57695), (11539, 53880), (12588, 49390), (13470, 46156), (14817, 41960), (15735, 39512), (17960, 34617), (19756, 31470), (20980, 29634), (23078, 26940), (24695, 25176)]