251013884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{571}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 489705216

約数和(自身を除く): 238691332

約数列:

[1, 2, 4, 11, 22, 44, 97, 103, 194, 206, 388, 412, 571, 1067, 1133, 1142, 2134, 2266, 2284, 4268, 4532, 6281, 9991, 12562, 19982, 25124, 39964, 55387, 58813, 109901, 110774, 117626, 219802, 221548, 235252, 439604, 609257, 646943, 1218514, 1293886, 2437028, 2587772, 5704861, 11409722, 22819444, 62753471, 125506942, 251013884]

約数ペア:

[(1, 251013884), (2, 125506942), (4, 62753471), (11, 22819444), (22, 11409722), (44, 5704861), (97, 2587772), (103, 2437028), (194, 1293886), (206, 1218514), (388, 646943), (412, 609257), (571, 439604), (1067, 235252), (1133, 221548), (1142, 219802), (2134, 117626), (2266, 110774), (2284, 109901), (4268, 58813), (4532, 55387), (6281, 39964), (9991, 25124), (12562, 19982)]