128189820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17657}}^1$

素因数の和:17691

約数の個数: 72

約数和(自身を含む): 394550352

約数和(自身を除く): 266360532

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 3630, 7260, 17657, 35314, 52971, 70628, 88285, 105942, 176570, 194227, 211884, 264855, 353140, 388454, 529710, 582681, 776908, 971135, 1059420, 1165362, 1942270, 2136497, 2330724, 2913405, 3884540, 4272994, 5826810, 6409491, 8545988, 10682485, 11653620, 12818982, 21364970, 25637964, 32047455, 42729940, 64094910, 128189820]

約数ペア:

[(1, 128189820), (2, 64094910), (3, 42729940), (4, 32047455), (5, 25637964), (6, 21364970), (10, 12818982), (11, 11653620), (12, 10682485), (15, 8545988), (20, 6409491), (22, 5826810), (30, 4272994), (33, 3884540), (44, 2913405), (55, 2330724), (60, 2136497), (66, 1942270), (110, 1165362), (121, 1059420), (132, 971135), (165, 776908), (220, 582681), (242, 529710), (330, 388454), (363, 353140), (484, 264855), (605, 211884), (660, 194227), (726, 176570), (1210, 105942), (1452, 88285), (1815, 70628), (2420, 52971), (3630, 35314), (7260, 17657)]