320996872

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{557}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 708704640

約数和(自身を除く): 387707768

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 251, 287, 328, 502, 557, 574, 1004, 1114, 1148, 1757, 2008, 2228, 2296, 3514, 3899, 4456, 7028, 7798, 10291, 14056, 15596, 20582, 22837, 31192, 41164, 45674, 72037, 82328, 91348, 139807, 144074, 159859, 182696, 279614, 288148, 319718, 559228, 576296, 639436, 978649, 1118456, 1278872, 1957298, 3914596, 5732087, 7829192, 11464174, 22928348, 40124609, 45856696, 80249218, 160498436, 320996872]

約数ペア:

[(1, 320996872), (2, 160498436), (4, 80249218), (7, 45856696), (8, 40124609), (14, 22928348), (28, 11464174), (41, 7829192), (56, 5732087), (82, 3914596), (164, 1957298), (251, 1278872), (287, 1118456), (328, 978649), (502, 639436), (557, 576296), (574, 559228), (1004, 319718), (1114, 288148), (1148, 279614), (1757, 182696), (2008, 159859), (2228, 144074), (2296, 139807), (3514, 91348), (3899, 82328), (4456, 72037), (7028, 45674), (7798, 41164), (10291, 31192), (14056, 22837), (15596, 20582)]