209817920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1688

約数の個数: 112

約数和(自身を含む): 555760128

約数和(自身を除く): 345942208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 806, 832, 992, 1040, 1240, 1612, 1627, 1984, 2015, 2080, 2480, 3224, 3254, 4030, 4160, 4960, 6448, 6508, 8060, 8135, 9920, 12896, 13016, 16120, 16270, 21151, 25792, 26032, 32240, 32540, 42302, 50437, 52064, 64480, 65080, 84604, 100874, 104128, 105755, 128960, 130160, 169208, 201748, 211510, 252185, 260320, 338416, 403496, 423020, 504370, 520640, 655681, 676832, 806992, 846040, 1008740, 1311362, 1353664, 1613984, 1692080, 2017480, 2622724, 3227968, 3278405, 3384160, 4034960, 5245448, 6556810, 6768320, 8069920, 10490896, 13113620, 16139840, 20981792, 26227240, 41963584, 52454480, 104908960, 209817920]

約数ペア:

[(1, 209817920), (2, 104908960), (4, 52454480), (5, 41963584), (8, 26227240), (10, 20981792), (13, 16139840), (16, 13113620), (20, 10490896), (26, 8069920), (31, 6768320), (32, 6556810), (40, 5245448), (52, 4034960), (62, 3384160), (64, 3278405), (65, 3227968), (80, 2622724), (104, 2017480), (124, 1692080), (130, 1613984), (155, 1353664), (160, 1311362), (208, 1008740), (248, 846040), (260, 806992), (310, 676832), (320, 655681), (403, 520640), (416, 504370), (496, 423020), (520, 403496), (620, 338416), (806, 260320), (832, 252185), (992, 211510), (1040, 201748), (1240, 169208), (1612, 130160), (1627, 128960), (1984, 105755), (2015, 104128), (2080, 100874), (2480, 84604), (3224, 65080), (3254, 64480), (4030, 52064), (4160, 50437), (4960, 42302), (6448, 32540), (6508, 32240), (8060, 26032), (8135, 25792), (9920, 21151), (12896, 16270), (13016, 16120)]