278857904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{6737}}^1$

素因数の和:6957

約数の個数: 40

約数和(自身を含む): 584858400

約数和(自身を除く): 306000496

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 199, 208, 398, 796, 1592, 2587, 3184, 5174, 6737, 10348, 13474, 20696, 26948, 41392, 53896, 87581, 107792, 175162, 350324, 700648, 1340663, 1401296, 2681326, 5362652, 10725304, 17428619, 21450608, 34857238, 69714476, 139428952, 278857904]

約数ペア:

[(1, 278857904), (2, 139428952), (4, 69714476), (8, 34857238), (13, 21450608), (16, 17428619), (26, 10725304), (52, 5362652), (104, 2681326), (199, 1401296), (208, 1340663), (398, 700648), (796, 350324), (1592, 175162), (2587, 107792), (3184, 87581), (5174, 53896), (6737, 41392), (10348, 26948), (13474, 20696)]