128567640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15991}}^1$

素因数の和:16072

約数の個数: 64

約数和(自身を含む): 391484160

約数和(自身を除く): 262916520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 67, 120, 134, 201, 268, 335, 402, 536, 670, 804, 1005, 1340, 1608, 2010, 2680, 4020, 8040, 15991, 31982, 47973, 63964, 79955, 95946, 127928, 159910, 191892, 239865, 319820, 383784, 479730, 639640, 959460, 1071397, 1918920, 2142794, 3214191, 4285588, 5356985, 6428382, 8571176, 10713970, 12856764, 16070955, 21427940, 25713528, 32141910, 42855880, 64283820, 128567640]

約数ペア:

[(1, 128567640), (2, 64283820), (3, 42855880), (4, 32141910), (5, 25713528), (6, 21427940), (8, 16070955), (10, 12856764), (12, 10713970), (15, 8571176), (20, 6428382), (24, 5356985), (30, 4285588), (40, 3214191), (60, 2142794), (67, 1918920), (120, 1071397), (134, 959460), (201, 639640), (268, 479730), (335, 383784), (402, 319820), (536, 239865), (670, 191892), (804, 159910), (1005, 127928), (1340, 95946), (1608, 79955), (2010, 63964), (2680, 47973), (4020, 31982), (8040, 15991)]