20115436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 40061952

約数和(自身を除く): 19946516

約数列:

[1, 2, 4, 11, 22, 44, 47, 71, 94, 137, 142, 188, 274, 284, 517, 548, 781, 1034, 1507, 1562, 2068, 3014, 3124, 3337, 6028, 6439, 6674, 9727, 12878, 13348, 19454, 25756, 36707, 38908, 70829, 73414, 106997, 141658, 146828, 213994, 283316, 427988, 457169, 914338, 1828676, 5028859, 10057718, 20115436]

約数ペア:

[(1, 20115436), (2, 10057718), (4, 5028859), (11, 1828676), (22, 914338), (44, 457169), (47, 427988), (71, 283316), (94, 213994), (137, 146828), (142, 141658), (188, 106997), (274, 73414), (284, 70829), (517, 38908), (548, 36707), (781, 25756), (1034, 19454), (1507, 13348), (1562, 12878), (2068, 9727), (3014, 6674), (3124, 6439), (3337, 6028)]