55435880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 129081600

約数和(自身を除く): 73645720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 158, 212, 265, 316, 331, 395, 424, 530, 632, 662, 790, 1060, 1324, 1580, 1655, 2120, 2648, 3160, 3310, 4187, 6620, 8374, 13240, 16748, 17543, 20935, 26149, 33496, 35086, 41870, 52298, 70172, 83740, 87715, 104596, 130745, 140344, 167480, 175430, 209192, 261490, 350860, 522980, 701720, 1045960, 1385897, 2771794, 5543588, 6929485, 11087176, 13858970, 27717940, 55435880]

約数ペア:

[(1, 55435880), (2, 27717940), (4, 13858970), (5, 11087176), (8, 6929485), (10, 5543588), (20, 2771794), (40, 1385897), (53, 1045960), (79, 701720), (106, 522980), (158, 350860), (212, 261490), (265, 209192), (316, 175430), (331, 167480), (395, 140344), (424, 130745), (530, 104596), (632, 87715), (662, 83740), (790, 70172), (1060, 52298), (1324, 41870), (1580, 35086), (1655, 33496), (2120, 26149), (2648, 20935), (3160, 17543), (3310, 16748), (4187, 13240), (6620, 8374)]