20415704

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{929}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 39841200

約数和(自身を除く): 19425496

約数列:

[1, 2, 4, 8, 41, 67, 82, 134, 164, 268, 328, 536, 929, 1858, 2747, 3716, 5494, 7432, 10988, 21976, 38089, 62243, 76178, 124486, 152356, 248972, 304712, 497944, 2551963, 5103926, 10207852, 20415704]

約数ペア:

[(1, 20415704), (2, 10207852), (4, 5103926), (8, 2551963), (41, 497944), (67, 304712), (82, 248972), (134, 152356), (164, 124486), (268, 76178), (328, 62243), (536, 38089), (929, 21976), (1858, 10988), (2747, 7432), (3716, 5494)]