720332925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{3343}}^1$

素因数の和:3399

約数の個数: 72

約数和(自身を含む): 1365876864

約数和(自身を除く): 645543939

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 169, 195, 221, 255, 325, 425, 507, 663, 845, 975, 1105, 1275, 2535, 2873, 3315, 3343, 4225, 5525, 8619, 10029, 12675, 14365, 16575, 16715, 43095, 43459, 50145, 56831, 71825, 83575, 130377, 170493, 215475, 217295, 250725, 284155, 564967, 651885, 738803, 852465, 1086475, 1420775, 1694901, 2216409, 2824835, 3259425, 3694015, 4262325, 8474505, 9604439, 11082045, 14124175, 18470075, 28813317, 42372525, 48022195, 55410225, 144066585, 240110975, 720332925]

約数ペア:

[(1, 720332925), (3, 240110975), (5, 144066585), (13, 55410225), (15, 48022195), (17, 42372525), (25, 28813317), (39, 18470075), (51, 14124175), (65, 11082045), (75, 9604439), (85, 8474505), (169, 4262325), (195, 3694015), (221, 3259425), (255, 2824835), (325, 2216409), (425, 1694901), (507, 1420775), (663, 1086475), (845, 852465), (975, 738803), (1105, 651885), (1275, 564967), (2535, 284155), (2873, 250725), (3315, 217295), (3343, 215475), (4225, 170493), (5525, 130377), (8619, 83575), (10029, 71825), (12675, 56831), (14365, 50145), (16575, 43459), (16715, 43095)]