208298415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 364290048

約数和(自身を除く): 155991633

約数列:

[1, 3, 5, 13, 15, 39, 65, 127, 169, 195, 381, 507, 635, 647, 845, 1651, 1905, 1941, 2535, 3235, 4953, 8255, 8411, 9705, 21463, 24765, 25233, 42055, 64389, 82169, 107315, 109343, 126165, 246507, 321945, 328029, 410845, 546715, 1068197, 1232535, 1640145, 3204591, 5340985, 13886561, 16022955, 41659683, 69432805, 208298415]

約数ペア:

[(1, 208298415), (3, 69432805), (5, 41659683), (13, 16022955), (15, 13886561), (39, 5340985), (65, 3204591), (127, 1640145), (169, 1232535), (195, 1068197), (381, 546715), (507, 410845), (635, 328029), (647, 321945), (845, 246507), (1651, 126165), (1905, 109343), (1941, 107315), (2535, 82169), (3235, 64389), (4953, 42055), (8255, 25233), (8411, 24765), (9705, 21463)]