254781994

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 437114880

約数和(自身を除く): 182332886

約数列:

[1, 2, 23, 29, 31, 46, 58, 61, 62, 101, 122, 202, 667, 713, 899, 1334, 1403, 1426, 1769, 1798, 1891, 2323, 2806, 2929, 3131, 3538, 3782, 4646, 5858, 6161, 6262, 12322, 20677, 40687, 41354, 43493, 54839, 67367, 72013, 81374, 86986, 90799, 109678, 134734, 141703, 144026, 178669, 181598, 190991, 283406, 357338, 381982, 1261297, 2088377, 2522594, 4109387, 4176754, 4392793, 5538739, 8218774, 8785586, 11077478, 127390997, 254781994]

約数ペア:

[(1, 254781994), (2, 127390997), (23, 11077478), (29, 8785586), (31, 8218774), (46, 5538739), (58, 4392793), (61, 4176754), (62, 4109387), (101, 2522594), (122, 2088377), (202, 1261297), (667, 381982), (713, 357338), (899, 283406), (1334, 190991), (1403, 181598), (1426, 178669), (1769, 144026), (1798, 141703), (1891, 134734), (2323, 109678), (2806, 90799), (2929, 86986), (3131, 81374), (3538, 72013), (3782, 67367), (4646, 54839), (5858, 43493), (6161, 41354), (6262, 40687), (12322, 20677)]