639818136

素因数分解:

$2^3\times 3^3\times {\mathrm{73}}^1\times {\mathrm{40577}}^1$

素因数の和:40665

約数の個数: 64

約数和(自身を含む): 1801663200

約数和(自身を除く): 1161845064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 73, 108, 146, 216, 219, 292, 438, 584, 657, 876, 1314, 1752, 1971, 2628, 3942, 5256, 7884, 15768, 40577, 81154, 121731, 162308, 243462, 324616, 365193, 486924, 730386, 973848, 1095579, 1460772, 2191158, 2921544, 2962121, 4382316, 5924242, 8764632, 8886363, 11848484, 17772726, 23696968, 26659089, 35545452, 53318178, 71090904, 79977267, 106636356, 159954534, 213272712, 319909068, 639818136]

約数ペア:

[(1, 639818136), (2, 319909068), (3, 213272712), (4, 159954534), (6, 106636356), (8, 79977267), (9, 71090904), (12, 53318178), (18, 35545452), (24, 26659089), (27, 23696968), (36, 17772726), (54, 11848484), (72, 8886363), (73, 8764632), (108, 5924242), (146, 4382316), (216, 2962121), (219, 2921544), (292, 2191158), (438, 1460772), (584, 1095579), (657, 973848), (876, 730386), (1314, 486924), (1752, 365193), (1971, 324616), (2628, 243462), (3942, 162308), (5256, 121731), (7884, 81154), (15768, 40577)]