81137875

素因数分解:

$5^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1019}}^1$

素因数の和:1061

約数の個数: 48

約数和(自身を含む): 126977760

約数和(自身を除く): 45839885

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 125, 175, 245, 325, 455, 637, 875, 1019, 1225, 1625, 2275, 3185, 5095, 6125, 7133, 11375, 13247, 15925, 25475, 35665, 49931, 66235, 79625, 92729, 127375, 178325, 249655, 331175, 463645, 649103, 891625, 1248275, 1655875, 2318225, 3245515, 6241375, 11591125, 16227575, 81137875]

約数ペア:

[(1, 81137875), (5, 16227575), (7, 11591125), (13, 6241375), (25, 3245515), (35, 2318225), (49, 1655875), (65, 1248275), (91, 891625), (125, 649103), (175, 463645), (245, 331175), (325, 249655), (455, 178325), (637, 127375), (875, 92729), (1019, 79625), (1225, 66235), (1625, 49931), (2275, 35665), (3185, 25475), (5095, 15925), (6125, 13247), (7133, 11375)]