81920480

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:348

約数の個数: 96

約数和(自身を含む): 204773184

約数和(自身を除く): 122852704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 113, 115, 160, 184, 197, 226, 230, 368, 394, 452, 460, 565, 736, 788, 904, 920, 985, 1130, 1576, 1808, 1840, 1970, 2260, 2599, 3152, 3616, 3680, 3940, 4520, 4531, 5198, 6304, 7880, 9040, 9062, 10396, 12995, 15760, 18080, 18124, 20792, 22261, 22655, 25990, 31520, 36248, 41584, 44522, 45310, 51980, 72496, 83168, 89044, 90620, 103960, 111305, 144992, 178088, 181240, 207920, 222610, 356176, 362480, 415840, 445220, 512003, 712352, 724960, 890440, 1024006, 1780880, 2048012, 2560015, 3561760, 4096024, 5120030, 8192048, 10240060, 16384096, 20480120, 40960240, 81920480]

約数ペア:

[(1, 81920480), (2, 40960240), (4, 20480120), (5, 16384096), (8, 10240060), (10, 8192048), (16, 5120030), (20, 4096024), (23, 3561760), (32, 2560015), (40, 2048012), (46, 1780880), (80, 1024006), (92, 890440), (113, 724960), (115, 712352), (160, 512003), (184, 445220), (197, 415840), (226, 362480), (230, 356176), (368, 222610), (394, 207920), (452, 181240), (460, 178088), (565, 144992), (736, 111305), (788, 103960), (904, 90620), (920, 89044), (985, 83168), (1130, 72496), (1576, 51980), (1808, 45310), (1840, 44522), (1970, 41584), (2260, 36248), (2599, 31520), (3152, 25990), (3616, 22655), (3680, 22261), (3940, 20792), (4520, 18124), (4531, 18080), (5198, 15760), (6304, 12995), (7880, 10396), (9040, 9062)]