208074375

素因数分解:

$3^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:618

約数の個数: 60

約数和(自身を含む): 381590352

約数和(自身を除く): 173515977

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 125, 213, 225, 355, 375, 521, 625, 639, 1065, 1125, 1563, 1775, 1875, 2605, 3195, 4689, 5325, 5625, 7815, 8875, 13025, 15975, 23445, 26625, 36991, 39075, 44375, 65125, 79875, 110973, 117225, 133125, 184955, 195375, 325625, 332919, 399375, 554865, 586125, 924775, 976875, 1664595, 2774325, 2930625, 4623875, 8322975, 13871625, 23119375, 41614875, 69358125, 208074375]

約数ペア:

[(1, 208074375), (3, 69358125), (5, 41614875), (9, 23119375), (15, 13871625), (25, 8322975), (45, 4623875), (71, 2930625), (75, 2774325), (125, 1664595), (213, 976875), (225, 924775), (355, 586125), (375, 554865), (521, 399375), (625, 332919), (639, 325625), (1065, 195375), (1125, 184955), (1563, 133125), (1775, 117225), (1875, 110973), (2605, 79875), (3195, 65125), (4689, 44375), (5325, 39075), (5625, 36991), (7815, 26625), (8875, 23445), (13025, 15975)]