78188990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 72

約数和(自身を含む): 164180520

約数和(自身を除く): 85991530

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 179, 190, 209, 242, 358, 361, 418, 605, 722, 895, 1045, 1210, 1790, 1805, 1969, 2090, 2299, 3401, 3610, 3938, 3971, 4598, 6802, 7942, 9845, 11495, 17005, 19690, 19855, 21659, 22990, 34010, 37411, 39710, 43318, 43681, 64619, 74822, 87362, 108295, 129238, 187055, 216590, 218405, 323095, 374110, 411521, 436810, 646190, 710809, 823042, 1421618, 2057605, 3554045, 4115210, 7108090, 7818899, 15637798, 39094495, 78188990]

約数ペア:

[(1, 78188990), (2, 39094495), (5, 15637798), (10, 7818899), (11, 7108090), (19, 4115210), (22, 3554045), (38, 2057605), (55, 1421618), (95, 823042), (110, 710809), (121, 646190), (179, 436810), (190, 411521), (209, 374110), (242, 323095), (358, 218405), (361, 216590), (418, 187055), (605, 129238), (722, 108295), (895, 87362), (1045, 74822), (1210, 64619), (1790, 43681), (1805, 43318), (1969, 39710), (2090, 37411), (2299, 34010), (3401, 22990), (3610, 21659), (3938, 19855), (3971, 19690), (4598, 17005), (6802, 11495), (7942, 9845)]