25148750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 80

約数和(自身を含む): 53982720

約数和(自身を除く): 28833970

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 59, 62, 110, 118, 125, 155, 250, 275, 295, 310, 341, 550, 590, 625, 649, 682, 775, 1250, 1298, 1375, 1475, 1550, 1705, 1829, 2750, 2950, 3245, 3410, 3658, 3875, 6490, 6875, 7375, 7750, 8525, 9145, 13750, 14750, 16225, 17050, 18290, 19375, 20119, 32450, 36875, 38750, 40238, 42625, 45725, 73750, 81125, 85250, 91450, 100595, 162250, 201190, 213125, 228625, 405625, 426250, 457250, 502975, 811250, 1005950, 1143125, 2286250, 2514875, 5029750, 12574375, 25148750]

約数ペア:

[(1, 25148750), (2, 12574375), (5, 5029750), (10, 2514875), (11, 2286250), (22, 1143125), (25, 1005950), (31, 811250), (50, 502975), (55, 457250), (59, 426250), (62, 405625), (110, 228625), (118, 213125), (125, 201190), (155, 162250), (250, 100595), (275, 91450), (295, 85250), (310, 81125), (341, 73750), (550, 45725), (590, 42625), (625, 40238), (649, 38750), (682, 36875), (775, 32450), (1250, 20119), (1298, 19375), (1375, 18290), (1475, 17050), (1550, 16225), (1705, 14750), (1829, 13750), (2750, 9145), (2950, 8525), (3245, 7750), (3410, 7375), (3658, 6875), (3875, 6490)]