638711280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3373}}^1$

素因数の和:3655

約数の個数: 120

約数和(自身を含む): 2153799648

約数和(自身を除く): 1515088368

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 263, 360, 526, 720, 789, 1052, 1315, 1578, 2104, 2367, 2630, 3156, 3373, 3945, 4208, 4734, 5260, 6312, 6746, 7890, 9468, 10119, 10520, 11835, 12624, 13492, 15780, 16865, 18936, 20238, 21040, 23670, 26984, 30357, 31560, 33730, 37872, 40476, 47340, 50595, 53968, 60714, 63120, 67460, 80952, 94680, 101190, 121428, 134920, 151785, 161904, 189360, 202380, 242856, 269840, 303570, 404760, 485712, 607140, 809520, 887099, 1214280, 1774198, 2428560, 2661297, 3548396, 4435495, 5322594, 7096792, 7983891, 8870990, 10645188, 13306485, 14193584, 15967782, 17741980, 21290376, 26612970, 31935564, 35483960, 39919455, 42580752, 53225940, 63871128, 70967920, 79838910, 106451880, 127742256, 159677820, 212903760, 319355640, 638711280]

約数ペア:

[(1, 638711280), (2, 319355640), (3, 212903760), (4, 159677820), (5, 127742256), (6, 106451880), (8, 79838910), (9, 70967920), (10, 63871128), (12, 53225940), (15, 42580752), (16, 39919455), (18, 35483960), (20, 31935564), (24, 26612970), (30, 21290376), (36, 17741980), (40, 15967782), (45, 14193584), (48, 13306485), (60, 10645188), (72, 8870990), (80, 7983891), (90, 7096792), (120, 5322594), (144, 4435495), (180, 3548396), (240, 2661297), (263, 2428560), (360, 1774198), (526, 1214280), (720, 887099), (789, 809520), (1052, 607140), (1315, 485712), (1578, 404760), (2104, 303570), (2367, 269840), (2630, 242856), (3156, 202380), (3373, 189360), (3945, 161904), (4208, 151785), (4734, 134920), (5260, 121428), (6312, 101190), (6746, 94680), (7890, 80952), (9468, 67460), (10119, 63120), (10520, 60714), (11835, 53968), (12624, 50595), (13492, 47340), (15780, 40476), (16865, 37872), (18936, 33730), (20238, 31560), (21040, 30357), (23670, 26984)]