20495208

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{347}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 33625752

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 107, 138, 184, 214, 276, 321, 347, 428, 552, 642, 694, 856, 1041, 1284, 1388, 2082, 2461, 2568, 2776, 4164, 4922, 7383, 7981, 8328, 9844, 14766, 15962, 19688, 23943, 29532, 31924, 37129, 47886, 59064, 63848, 74258, 95772, 111387, 148516, 191544, 222774, 297032, 445548, 853967, 891096, 1707934, 2561901, 3415868, 5123802, 6831736, 10247604, 20495208]

約数ペア:

[(1, 20495208), (2, 10247604), (3, 6831736), (4, 5123802), (6, 3415868), (8, 2561901), (12, 1707934), (23, 891096), (24, 853967), (46, 445548), (69, 297032), (92, 222774), (107, 191544), (138, 148516), (184, 111387), (214, 95772), (276, 74258), (321, 63848), (347, 59064), (428, 47886), (552, 37129), (642, 31924), (694, 29532), (856, 23943), (1041, 19688), (1284, 15962), (1388, 14766), (2082, 9844), (2461, 8328), (2568, 7981), (2776, 7383), (4164, 4922)]