420163625

素因数分解:

$5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 638976000

約数和(自身を除く): 218812375

約数列:

[1, 5, 7, 19, 25, 35, 95, 125, 127, 133, 175, 199, 475, 635, 665, 875, 889, 995, 1393, 2375, 2413, 3175, 3325, 3781, 4445, 4975, 6965, 12065, 15875, 16625, 16891, 18905, 22225, 24875, 25273, 26467, 34825, 60325, 84455, 94525, 111125, 126365, 132335, 174125, 176911, 301625, 422275, 472625, 480187, 631825, 661675, 884555, 2111375, 2400935, 3159125, 3308375, 3361309, 4422775, 12004675, 16806545, 22113875, 60023375, 84032725, 420163625]

約数ペア:

[(1, 420163625), (5, 84032725), (7, 60023375), (19, 22113875), (25, 16806545), (35, 12004675), (95, 4422775), (125, 3361309), (127, 3308375), (133, 3159125), (175, 2400935), (199, 2111375), (475, 884555), (635, 661675), (665, 631825), (875, 480187), (889, 472625), (995, 422275), (1393, 301625), (2375, 176911), (2413, 174125), (3175, 132335), (3325, 126365), (3781, 111125), (4445, 94525), (4975, 84455), (6965, 60325), (12065, 34825), (15875, 26467), (16625, 25273), (16891, 24875), (18905, 22225)]