28967575

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 48090672

約数和(自身を除く): 19123097

約数列:

[1, 5, 7, 13, 17, 25, 35, 49, 65, 85, 91, 107, 119, 175, 221, 245, 325, 425, 455, 535, 595, 637, 749, 833, 1105, 1225, 1391, 1547, 1819, 2275, 2675, 2975, 3185, 3745, 4165, 5243, 5525, 6955, 7735, 9095, 9737, 10829, 12733, 15925, 18725, 20825, 23647, 26215, 34775, 38675, 45475, 48685, 54145, 63665, 68159, 89131, 118235, 131075, 165529, 243425, 270725, 318325, 340795, 445655, 591175, 827645, 1158703, 1703975, 2228275, 4138225, 5793515, 28967575]

約数ペア:

[(1, 28967575), (5, 5793515), (7, 4138225), (13, 2228275), (17, 1703975), (25, 1158703), (35, 827645), (49, 591175), (65, 445655), (85, 340795), (91, 318325), (107, 270725), (119, 243425), (175, 165529), (221, 131075), (245, 118235), (325, 89131), (425, 68159), (455, 63665), (535, 54145), (595, 48685), (637, 45475), (749, 38675), (833, 34775), (1105, 26215), (1225, 23647), (1391, 20825), (1547, 18725), (1819, 15925), (2275, 12733), (2675, 10829), (2975, 9737), (3185, 9095), (3745, 7735), (4165, 6955), (5243, 5525)]