320428208

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:1005

約数の個数: 40

約数和(自身を含む): 628903200

約数和(自身を除く): 308474992

約数列:

[1, 2, 4, 8, 16, 157, 199, 314, 398, 628, 641, 796, 1256, 1282, 1592, 2512, 2564, 3184, 5128, 10256, 31243, 62486, 100637, 124972, 127559, 201274, 249944, 255118, 402548, 499888, 510236, 805096, 1020472, 1610192, 2040944, 20026763, 40053526, 80107052, 160214104, 320428208]

約数ペア:

[(1, 320428208), (2, 160214104), (4, 80107052), (8, 40053526), (16, 20026763), (157, 2040944), (199, 1610192), (314, 1020472), (398, 805096), (628, 510236), (641, 499888), (796, 402548), (1256, 255118), (1282, 249944), (1592, 201274), (2512, 127559), (2564, 124972), (3184, 100637), (5128, 62486), (10256, 31243)]