28745680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 70424064

約数和(自身を除く): 41678384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 67, 80, 124, 134, 155, 173, 248, 268, 310, 335, 346, 496, 536, 620, 670, 692, 865, 1072, 1240, 1340, 1384, 1730, 2077, 2480, 2680, 2768, 3460, 4154, 5360, 5363, 6920, 8308, 10385, 10726, 11591, 13840, 16616, 20770, 21452, 23182, 26815, 33232, 41540, 42904, 46364, 53630, 57955, 83080, 85808, 92728, 107260, 115910, 166160, 185456, 214520, 231820, 359321, 429040, 463640, 718642, 927280, 1437284, 1796605, 2874568, 3593210, 5749136, 7186420, 14372840, 28745680]

約数ペア:

[(1, 28745680), (2, 14372840), (4, 7186420), (5, 5749136), (8, 3593210), (10, 2874568), (16, 1796605), (20, 1437284), (31, 927280), (40, 718642), (62, 463640), (67, 429040), (80, 359321), (124, 231820), (134, 214520), (155, 185456), (173, 166160), (248, 115910), (268, 107260), (310, 92728), (335, 85808), (346, 83080), (496, 57955), (536, 53630), (620, 46364), (670, 42904), (692, 41540), (865, 33232), (1072, 26815), (1240, 23182), (1340, 21452), (1384, 20770), (1730, 16616), (2077, 13840), (2480, 11591), (2680, 10726), (2768, 10385), (3460, 8308), (4154, 6920), (5360, 5363)]