261753196

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 494968320

約数和(自身を除く): 233215124

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 131, 244, 262, 431, 524, 862, 1159, 1724, 2318, 2489, 4636, 4978, 7991, 8189, 9956, 15982, 16378, 26291, 31964, 32756, 52582, 56461, 105164, 112922, 151829, 225844, 303658, 499529, 607316, 999058, 1072759, 1998116, 2145518, 3444121, 4291036, 6888242, 13776484, 65438299, 130876598, 261753196]

約数ペア:

[(1, 261753196), (2, 130876598), (4, 65438299), (19, 13776484), (38, 6888242), (61, 4291036), (76, 3444121), (122, 2145518), (131, 1998116), (244, 1072759), (262, 999058), (431, 607316), (524, 499529), (862, 303658), (1159, 225844), (1724, 151829), (2318, 112922), (2489, 105164), (4636, 56461), (4978, 52582), (7991, 32756), (8189, 31964), (9956, 26291), (15982, 16378)]