2154021220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{113489}}^1$

素因数の和:113584

約数の個数: 48

約数和(自身を含む): 4938176880

約数和(自身を除く): 2784155660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1898, 3796, 4745, 9490, 18980, 113489, 226978, 453956, 567445, 1134890, 1475357, 2269780, 2950714, 5901428, 7376785, 8284697, 14753570, 16569394, 29507140, 33138788, 41423485, 82846970, 107701061, 165693940, 215402122, 430804244, 538505305, 1077010610, 2154021220]

約数ペア:

[(1, 2154021220), (2, 1077010610), (4, 538505305), (5, 430804244), (10, 215402122), (13, 165693940), (20, 107701061), (26, 82846970), (52, 41423485), (65, 33138788), (73, 29507140), (130, 16569394), (146, 14753570), (260, 8284697), (292, 7376785), (365, 5901428), (730, 2950714), (949, 2269780), (1460, 1475357), (1898, 1134890), (3796, 567445), (4745, 453956), (9490, 226978), (18980, 113489)]