172889260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1117}}^1$

素因数の和:1306

約数の個数: 48

約数和(自身を含む): 371891520

約数和(自身を除く): 199002260

約数列:

[1, 2, 4, 5, 10, 20, 71, 109, 142, 218, 284, 355, 436, 545, 710, 1090, 1117, 1420, 2180, 2234, 4468, 5585, 7739, 11170, 15478, 22340, 30956, 38695, 77390, 79307, 121753, 154780, 158614, 243506, 317228, 396535, 487012, 608765, 793070, 1217530, 1586140, 2435060, 8644463, 17288926, 34577852, 43222315, 86444630, 172889260]

約数ペア:

[(1, 172889260), (2, 86444630), (4, 43222315), (5, 34577852), (10, 17288926), (20, 8644463), (71, 2435060), (109, 1586140), (142, 1217530), (218, 793070), (284, 608765), (355, 487012), (436, 396535), (545, 317228), (710, 243506), (1090, 158614), (1117, 154780), (1420, 121753), (2180, 79307), (2234, 77390), (4468, 38695), (5585, 30956), (7739, 22340), (11170, 15478)]