204537575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 286454880

約数和(自身を除く): 81917305

約数列:

[1, 5, 11, 25, 55, 61, 89, 137, 275, 305, 445, 671, 685, 979, 1507, 1525, 2225, 3355, 3425, 4895, 5429, 7535, 8357, 12193, 16775, 24475, 27145, 37675, 41785, 59719, 60965, 91927, 134123, 135725, 208925, 298595, 304825, 459635, 670615, 743773, 1492975, 2298175, 3353075, 3718865, 8181503, 18594325, 40907515, 204537575]

約数ペア:

[(1, 204537575), (5, 40907515), (11, 18594325), (25, 8181503), (55, 3718865), (61, 3353075), (89, 2298175), (137, 1492975), (275, 743773), (305, 670615), (445, 459635), (671, 304825), (685, 298595), (979, 208925), (1507, 135725), (1525, 134123), (2225, 91927), (3355, 60965), (3425, 59719), (4895, 41785), (5429, 37675), (7535, 27145), (8357, 24475), (12193, 16775)]