76981395

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 131003136

約数和(自身を除く): 54021741

約数列:

[1, 3, 5, 15, 41, 43, 71, 123, 129, 205, 213, 215, 355, 615, 645, 1065, 1681, 1763, 2911, 3053, 5043, 5289, 8405, 8733, 8815, 9159, 14555, 15265, 25215, 26445, 43665, 45795, 72283, 119351, 125173, 216849, 358053, 361415, 375519, 596755, 625865, 1084245, 1790265, 1877595, 5132093, 15396279, 25660465, 76981395]

約数ペア:

[(1, 76981395), (3, 25660465), (5, 15396279), (15, 5132093), (41, 1877595), (43, 1790265), (71, 1084245), (123, 625865), (129, 596755), (205, 375519), (213, 361415), (215, 358053), (355, 216849), (615, 125173), (645, 119351), (1065, 72283), (1681, 45795), (1763, 43665), (2911, 26445), (3053, 25215), (5043, 15265), (5289, 14555), (8405, 9159), (8733, 8815)]