81491130

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43117}}^1$

素因数の和:43140

約数の個数: 64

約数和(自身を含む): 248359680

約数和(自身を除く): 166868550

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 43117, 86234, 129351, 215585, 258702, 301819, 388053, 431170, 603638, 646755, 776106, 905457, 1164159, 1293510, 1509095, 1810914, 1940265, 2328318, 2716371, 3018190, 3880530, 4527285, 5432742, 5820795, 8149113, 9054570, 11641590, 13581855, 16298226, 27163710, 40745565, 81491130]

約数ペア:

[(1, 81491130), (2, 40745565), (3, 27163710), (5, 16298226), (6, 13581855), (7, 11641590), (9, 9054570), (10, 8149113), (14, 5820795), (15, 5432742), (18, 4527285), (21, 3880530), (27, 3018190), (30, 2716371), (35, 2328318), (42, 1940265), (45, 1810914), (54, 1509095), (63, 1293510), (70, 1164159), (90, 905457), (105, 776106), (126, 646755), (135, 603638), (189, 431170), (210, 388053), (270, 301819), (315, 258702), (378, 215585), (630, 129351), (945, 86234), (1890, 43117)]