180978876

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20353}}^1$

素因数の和:20395

約数の個数: 72

約数和(自身を含む): 518619920

約数和(自身を除く): 337641044

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2964, 4446, 8892, 20353, 40706, 61059, 81412, 122118, 183177, 244236, 264589, 366354, 386707, 529178, 732708, 773414, 793767, 1058356, 1160121, 1546828, 1587534, 2320242, 2381301, 3175068, 3480363, 4640484, 4762602, 5027191, 6960726, 9525204, 10054382, 13921452, 15081573, 20108764, 30163146, 45244719, 60326292, 90489438, 180978876]

約数ペア:

[(1, 180978876), (2, 90489438), (3, 60326292), (4, 45244719), (6, 30163146), (9, 20108764), (12, 15081573), (13, 13921452), (18, 10054382), (19, 9525204), (26, 6960726), (36, 5027191), (38, 4762602), (39, 4640484), (52, 3480363), (57, 3175068), (76, 2381301), (78, 2320242), (114, 1587534), (117, 1546828), (156, 1160121), (171, 1058356), (228, 793767), (234, 773414), (247, 732708), (342, 529178), (468, 386707), (494, 366354), (684, 264589), (741, 244236), (988, 183177), (1482, 122118), (2223, 81412), (2964, 61059), (4446, 40706), (8892, 20353)]