823141280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{395741}}^1$

素因数の和:395769

約数の個数: 48

約数和(自身を含む): 2094266664

約数和(自身を除く): 1271125384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 395741, 791482, 1582964, 1978705, 3165928, 3957410, 5144633, 6331856, 7914820, 10289266, 12663712, 15829640, 20578532, 25723165, 31659280, 41157064, 51446330, 63318560, 82314128, 102892660, 164628256, 205785320, 411570640, 823141280]

約数ペア:

[(1, 823141280), (2, 411570640), (4, 205785320), (5, 164628256), (8, 102892660), (10, 82314128), (13, 63318560), (16, 51446330), (20, 41157064), (26, 31659280), (32, 25723165), (40, 20578532), (52, 15829640), (65, 12663712), (80, 10289266), (104, 7914820), (130, 6331856), (160, 5144633), (208, 3957410), (260, 3165928), (416, 1978705), (520, 1582964), (1040, 791482), (2080, 395741)]