2160080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:124

約数の個数: 80

約数和(自身を含む): 5666304

約数和(自身を除く): 3506224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 67, 80, 104, 124, 130, 134, 155, 208, 248, 260, 268, 310, 335, 403, 496, 520, 536, 620, 670, 806, 871, 1040, 1072, 1240, 1340, 1612, 1742, 2015, 2077, 2480, 2680, 3224, 3484, 4030, 4154, 4355, 5360, 6448, 6968, 8060, 8308, 8710, 10385, 13936, 16120, 16616, 17420, 20770, 27001, 32240, 33232, 34840, 41540, 54002, 69680, 83080, 108004, 135005, 166160, 216008, 270010, 432016, 540020, 1080040, 2160080]

約数ペア:

[(1, 2160080), (2, 1080040), (4, 540020), (5, 432016), (8, 270010), (10, 216008), (13, 166160), (16, 135005), (20, 108004), (26, 83080), (31, 69680), (40, 54002), (52, 41540), (62, 34840), (65, 33232), (67, 32240), (80, 27001), (104, 20770), (124, 17420), (130, 16616), (134, 16120), (155, 13936), (208, 10385), (248, 8710), (260, 8308), (268, 8060), (310, 6968), (335, 6448), (403, 5360), (496, 4355), (520, 4154), (536, 4030), (620, 3484), (670, 3224), (806, 2680), (871, 2480), (1040, 2077), (1072, 2015), (1240, 1742), (1340, 1612)]