67211720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{809}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 158630400

約数和(自身を除く): 91418680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 67, 124, 134, 155, 248, 268, 310, 335, 536, 620, 670, 809, 1240, 1340, 1618, 2077, 2680, 3236, 4045, 4154, 6472, 8090, 8308, 10385, 16180, 16616, 20770, 25079, 32360, 41540, 50158, 54203, 83080, 100316, 108406, 125395, 200632, 216812, 250790, 271015, 433624, 501580, 542030, 1003160, 1084060, 1680293, 2168120, 3360586, 6721172, 8401465, 13442344, 16802930, 33605860, 67211720]

約数ペア:

[(1, 67211720), (2, 33605860), (4, 16802930), (5, 13442344), (8, 8401465), (10, 6721172), (20, 3360586), (31, 2168120), (40, 1680293), (62, 1084060), (67, 1003160), (124, 542030), (134, 501580), (155, 433624), (248, 271015), (268, 250790), (310, 216812), (335, 200632), (536, 125395), (620, 108406), (670, 100316), (809, 83080), (1240, 54203), (1340, 50158), (1618, 41540), (2077, 32360), (2680, 25079), (3236, 20770), (4045, 16616), (4154, 16180), (6472, 10385), (8090, 8308)]