81109216

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 164505600

約数和(自身を除く): 83396384

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 188, 199, 271, 376, 398, 542, 752, 796, 1084, 1504, 1592, 2168, 3184, 4336, 6368, 8672, 9353, 12737, 18706, 25474, 37412, 50948, 53929, 74824, 101896, 107858, 149648, 203792, 215716, 299296, 407584, 431432, 862864, 1725728, 2534663, 5069326, 10138652, 20277304, 40554608, 81109216]

約数ペア:

[(1, 81109216), (2, 40554608), (4, 20277304), (8, 10138652), (16, 5069326), (32, 2534663), (47, 1725728), (94, 862864), (188, 431432), (199, 407584), (271, 299296), (376, 215716), (398, 203792), (542, 149648), (752, 107858), (796, 101896), (1084, 74824), (1504, 53929), (1592, 50948), (2168, 37412), (3184, 25474), (4336, 18706), (6368, 12737), (8672, 9353)]