66920685

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 123475968

約数和(自身を除く): 56555283

約数列:

[1, 3, 5, 13, 15, 23, 39, 43, 65, 69, 115, 129, 195, 215, 299, 345, 347, 559, 645, 897, 989, 1041, 1495, 1677, 1735, 2795, 2967, 4485, 4511, 4945, 5205, 7981, 8385, 12857, 13533, 14835, 14921, 22555, 23943, 38571, 39905, 44763, 64285, 67665, 74605, 103753, 119715, 192855, 193973, 223815, 311259, 343183, 518765, 581919, 969865, 1029549, 1556295, 1715915, 2909595, 4461379, 5147745, 13384137, 22306895, 66920685]

約数ペア:

[(1, 66920685), (3, 22306895), (5, 13384137), (13, 5147745), (15, 4461379), (23, 2909595), (39, 1715915), (43, 1556295), (65, 1029549), (69, 969865), (115, 581919), (129, 518765), (195, 343183), (215, 311259), (299, 223815), (345, 193973), (347, 192855), (559, 119715), (645, 103753), (897, 74605), (989, 67665), (1041, 64285), (1495, 44763), (1677, 39905), (1735, 38571), (2795, 23943), (2967, 22555), (4485, 14921), (4511, 14835), (4945, 13533), (5205, 12857), (7981, 8385)]