21917089280

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{276173}}^1$

素因数の和:276227

約数の個数: 80

約数和(自身を含む): 54244992384

約数和(自身を除く): 32327903104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 7936, 9920, 15872, 19840, 39680, 79360, 276173, 552346, 1104692, 1380865, 2209384, 2761730, 4418768, 5523460, 8561363, 8837536, 11046920, 17122726, 17675072, 22093840, 34245452, 35350144, 42806815, 44187680, 68490904, 70700288, 85613630, 88375360, 136981808, 141400576, 171227260, 176750720, 273963616, 342454520, 353501440, 547927232, 684909040, 707002880, 1095854464, 1369818080, 2191708928, 2739636160, 4383417856, 5479272320, 10958544640, 21917089280]

約数ペア:

[(1, 21917089280), (2, 10958544640), (4, 5479272320), (5, 4383417856), (8, 2739636160), (10, 2191708928), (16, 1369818080), (20, 1095854464), (31, 707002880), (32, 684909040), (40, 547927232), (62, 353501440), (64, 342454520), (80, 273963616), (124, 176750720), (128, 171227260), (155, 141400576), (160, 136981808), (248, 88375360), (256, 85613630), (310, 70700288), (320, 68490904), (496, 44187680), (512, 42806815), (620, 35350144), (640, 34245452), (992, 22093840), (1240, 17675072), (1280, 17122726), (1984, 11046920), (2480, 8837536), (2560, 8561363), (3968, 5523460), (4960, 4418768), (7936, 2761730), (9920, 2209384), (15872, 1380865), (19840, 1104692), (39680, 552346), (79360, 276173)]