261161569196

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{409}}^1\times {\mathrm{431}}^1\times {\mathrm{3061}}^1$

素因数の和:3927

約数の個数: 72

約数和(自身を含む): 504919880640

約数和(自身を除く): 243758311444

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 409, 431, 484, 818, 862, 1636, 1724, 3061, 4499, 4741, 6122, 8998, 9482, 12244, 17996, 18964, 33671, 49489, 52151, 67342, 98978, 104302, 134684, 176279, 197956, 208604, 352558, 370381, 705116, 740762, 1251949, 1319291, 1481524, 1939069, 2503898, 2638582, 3878138, 5007796, 5277164, 7756276, 13771439, 14512201, 21329759, 27542878, 29024402, 42659518, 55085756, 58048804, 85319036, 151485829, 159634211, 302971658, 319268422, 539590019, 605943316, 638536844, 1079180038, 2158360076, 5935490209, 11870980418, 23741960836, 65290392299, 130580784598, 261161569196]

約数ペア:

[(1, 261161569196), (2, 130580784598), (4, 65290392299), (11, 23741960836), (22, 11870980418), (44, 5935490209), (121, 2158360076), (242, 1079180038), (409, 638536844), (431, 605943316), (484, 539590019), (818, 319268422), (862, 302971658), (1636, 159634211), (1724, 151485829), (3061, 85319036), (4499, 58048804), (4741, 55085756), (6122, 42659518), (8998, 29024402), (9482, 27542878), (12244, 21329759), (17996, 14512201), (18964, 13771439), (33671, 7756276), (49489, 5277164), (52151, 5007796), (67342, 3878138), (98978, 2638582), (104302, 2503898), (134684, 1939069), (176279, 1481524), (197956, 1319291), (208604, 1251949), (352558, 740762), (370381, 705116)]