20121388326

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{13003}}^1$

素因数の和:13430

約数の個数: 96

約数和(自身を含む): 49843291680

約数和(自身を除く): 29721903354

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 389, 442, 663, 778, 1167, 1326, 1989, 2334, 3501, 3978, 5057, 6613, 7002, 10114, 13003, 13226, 15171, 19839, 26006, 30342, 39009, 39678, 45513, 59517, 78018, 85969, 91026, 117027, 119034, 169039, 171938, 221051, 234054, 257907, 338078, 442102, 507117, 515814, 663153, 773721, 1014234, 1326306, 1521351, 1547442, 1989459, 2873663, 3042702, 3978918, 5058167, 5747326, 8620989, 10116334, 15174501, 17241978, 25862967, 30349002, 45523503, 51725934, 65756171, 85988839, 91047006, 131512342, 171977678, 197268513, 257966517, 394537026, 515933034, 591805539, 773899551, 1117854907, 1183611078, 1547799102, 2235709814, 3353564721, 6707129442, 10060694163, 20121388326]

約数ペア:

[(1, 20121388326), (2, 10060694163), (3, 6707129442), (6, 3353564721), (9, 2235709814), (13, 1547799102), (17, 1183611078), (18, 1117854907), (26, 773899551), (34, 591805539), (39, 515933034), (51, 394537026), (78, 257966517), (102, 197268513), (117, 171977678), (153, 131512342), (221, 91047006), (234, 85988839), (306, 65756171), (389, 51725934), (442, 45523503), (663, 30349002), (778, 25862967), (1167, 17241978), (1326, 15174501), (1989, 10116334), (2334, 8620989), (3501, 5747326), (3978, 5058167), (5057, 3978918), (6613, 3042702), (7002, 2873663), (10114, 1989459), (13003, 1547442), (13226, 1521351), (15171, 1326306), (19839, 1014234), (26006, 773721), (30342, 663153), (39009, 515814), (39678, 507117), (45513, 442102), (59517, 338078), (78018, 257907), (85969, 234054), (91026, 221051), (117027, 171938), (119034, 169039)]