156780987425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2141}}^1\times {\mathrm{4007}}^1$

素因数の和:6218

約数の個数: 48

約数和(自身を含む): 210782259072

約数和(自身を除く): 54001271647

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 2141, 3655, 4007, 10705, 18275, 20035, 36397, 53525, 68119, 92063, 100175, 172301, 181985, 340595, 460315, 861505, 909925, 1565071, 1702975, 2301575, 2929117, 4307525, 7825355, 8578987, 14645585, 39126775, 42894935, 73227925, 145842779, 214474675, 368896441, 729213895, 1844482205, 3646069475, 6271239497, 9222411025, 31356197485, 156780987425]

約数ペア:

[(1, 156780987425), (5, 31356197485), (17, 9222411025), (25, 6271239497), (43, 3646069475), (85, 1844482205), (215, 729213895), (425, 368896441), (731, 214474675), (1075, 145842779), (2141, 73227925), (3655, 42894935), (4007, 39126775), (10705, 14645585), (18275, 8578987), (20035, 7825355), (36397, 4307525), (53525, 2929117), (68119, 2301575), (92063, 1702975), (100175, 1565071), (172301, 909925), (181985, 861505), (340595, 460315)]