20382784

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:323

約数の個数: 56

約数和(自身を含む): 43086528

約数和(自身を除く): 22703744

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 64, 92, 122, 184, 227, 244, 368, 454, 488, 736, 908, 976, 1403, 1472, 1816, 1952, 2806, 3632, 3904, 5221, 5612, 7264, 10442, 11224, 13847, 14528, 20884, 22448, 27694, 41768, 44896, 55388, 83536, 89792, 110776, 167072, 221552, 318481, 334144, 443104, 636962, 886208, 1273924, 2547848, 5095696, 10191392, 20382784]

約数ペア:

[(1, 20382784), (2, 10191392), (4, 5095696), (8, 2547848), (16, 1273924), (23, 886208), (32, 636962), (46, 443104), (61, 334144), (64, 318481), (92, 221552), (122, 167072), (184, 110776), (227, 89792), (244, 83536), (368, 55388), (454, 44896), (488, 41768), (736, 27694), (908, 22448), (976, 20884), (1403, 14528), (1472, 13847), (1816, 11224), (1952, 10442), (2806, 7264), (3632, 5612), (3904, 5221)]