68487680

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:917

約数の個数: 80

約数和(自身を含む): 169703424

約数和(自身を除く): 101215744

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, 863, 992, 1240, 1280, 1726, 1984, 2480, 2560, 3452, 3968, 4315, 4960, 6904, 7936, 8630, 9920, 13808, 15872, 17260, 19840, 26753, 27616, 34520, 39680, 53506, 55232, 69040, 79360, 107012, 110464, 133765, 138080, 214024, 220928, 267530, 276160, 428048, 441856, 535060, 552320, 856096, 1070120, 1104640, 1712192, 2140240, 2209280, 3424384, 4280480, 6848768, 8560960, 13697536, 17121920, 34243840, 68487680]

約数ペア:

[(1, 68487680), (2, 34243840), (4, 17121920), (5, 13697536), (8, 8560960), (10, 6848768), (16, 4280480), (20, 3424384), (31, 2209280), (32, 2140240), (40, 1712192), (62, 1104640), (64, 1070120), (80, 856096), (124, 552320), (128, 535060), (155, 441856), (160, 428048), (248, 276160), (256, 267530), (310, 220928), (320, 214024), (496, 138080), (512, 133765), (620, 110464), (640, 107012), (863, 79360), (992, 69040), (1240, 55232), (1280, 53506), (1726, 39680), (1984, 34520), (2480, 27616), (2560, 26753), (3452, 19840), (3968, 17260), (4315, 15872), (4960, 13808), (6904, 9920), (7936, 8630)]