80540625

素因数分解:

$3^1\times 5^5\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 149615424

約数和(自身を除く): 69074799

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 71, 75, 121, 125, 165, 213, 275, 355, 363, 375, 605, 625, 781, 825, 1065, 1375, 1775, 1815, 1875, 2343, 3025, 3125, 3905, 4125, 5325, 6875, 8591, 8875, 9075, 9375, 11715, 15125, 19525, 20625, 25773, 26625, 34375, 42955, 44375, 45375, 58575, 75625, 97625, 103125, 128865, 133125, 214775, 221875, 226875, 292875, 378125, 488125, 644325, 665625, 1073875, 1134375, 1464375, 2440625, 3221625, 5369375, 7321875, 16108125, 26846875, 80540625]

約数ペア:

[(1, 80540625), (3, 26846875), (5, 16108125), (11, 7321875), (15, 5369375), (25, 3221625), (33, 2440625), (55, 1464375), (71, 1134375), (75, 1073875), (121, 665625), (125, 644325), (165, 488125), (213, 378125), (275, 292875), (355, 226875), (363, 221875), (375, 214775), (605, 133125), (625, 128865), (781, 103125), (825, 97625), (1065, 75625), (1375, 58575), (1775, 45375), (1815, 44375), (1875, 42955), (2343, 34375), (3025, 26625), (3125, 25773), (3905, 20625), (4125, 19525), (5325, 15125), (6875, 11715), (8591, 9375), (8875, 9075)]