20181534

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25437666

約数列:

[1, 2, 3, 6, 19, 23, 38, 43, 46, 57, 69, 86, 114, 129, 138, 179, 258, 358, 437, 537, 817, 874, 989, 1074, 1311, 1634, 1978, 2451, 2622, 2967, 3401, 4117, 4902, 5934, 6802, 7697, 8234, 10203, 12351, 15394, 18791, 20406, 23091, 24702, 37582, 46182, 56373, 78223, 112746, 146243, 156446, 177031, 234669, 292486, 354062, 438729, 469338, 531093, 877458, 1062186, 3363589, 6727178, 10090767, 20181534]

約数ペア:

[(1, 20181534), (2, 10090767), (3, 6727178), (6, 3363589), (19, 1062186), (23, 877458), (38, 531093), (43, 469338), (46, 438729), (57, 354062), (69, 292486), (86, 234669), (114, 177031), (129, 156446), (138, 146243), (179, 112746), (258, 78223), (358, 56373), (437, 46182), (537, 37582), (817, 24702), (874, 23091), (989, 20406), (1074, 18791), (1311, 15394), (1634, 12351), (1978, 10203), (2451, 8234), (2622, 7697), (2967, 6802), (3401, 5934), (4117, 4902)]