20195344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{643}}^1$

素因数の和:815

約数の個数: 40

約数和(自身を含む): 42483392

約数和(自身を除く): 22288048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 151, 208, 302, 604, 643, 1208, 1286, 1963, 2416, 2572, 3926, 5144, 7852, 8359, 10288, 15704, 16718, 31408, 33436, 66872, 97093, 133744, 194186, 388372, 776744, 1262209, 1553488, 2524418, 5048836, 10097672, 20195344]

約数ペア:

[(1, 20195344), (2, 10097672), (4, 5048836), (8, 2524418), (13, 1553488), (16, 1262209), (26, 776744), (52, 388372), (104, 194186), (151, 133744), (208, 97093), (302, 66872), (604, 33436), (643, 31408), (1208, 16718), (1286, 15704), (1963, 10288), (2416, 8359), (2572, 7852), (3926, 5144)]