201457990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{19427}}^1$

素因数の和:19512

約数の個数: 32

約数和(自身を含む): 390269664

約数和(自身を除く): 188811674

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 170, 305, 610, 1037, 2074, 5185, 10370, 19427, 38854, 97135, 194270, 330259, 660518, 1185047, 1651295, 2370094, 3302590, 5925235, 11850470, 20145799, 40291598, 100728995, 201457990]

約数ペア:

[(1, 201457990), (2, 100728995), (5, 40291598), (10, 20145799), (17, 11850470), (34, 5925235), (61, 3302590), (85, 2370094), (122, 1651295), (170, 1185047), (305, 660518), (610, 330259), (1037, 194270), (2074, 97135), (5185, 38854), (10370, 19427)]