18755000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^2\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 49859040

約数和(自身を除く): 31104040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 31, 40, 44, 50, 55, 62, 88, 100, 110, 121, 124, 125, 155, 200, 220, 242, 248, 250, 275, 310, 341, 440, 484, 500, 550, 605, 620, 625, 682, 775, 968, 1000, 1100, 1210, 1240, 1250, 1364, 1375, 1550, 1705, 2200, 2420, 2500, 2728, 2750, 3025, 3100, 3410, 3751, 3875, 4840, 5000, 5500, 6050, 6200, 6820, 6875, 7502, 7750, 8525, 11000, 12100, 13640, 13750, 15004, 15125, 15500, 17050, 18755, 19375, 24200, 27500, 30008, 30250, 31000, 34100, 37510, 38750, 42625, 55000, 60500, 68200, 75020, 75625, 77500, 85250, 93775, 121000, 150040, 151250, 155000, 170500, 187550, 213125, 302500, 341000, 375100, 426250, 468875, 605000, 750200, 852500, 937750, 1705000, 1875500, 2344375, 3751000, 4688750, 9377500, 18755000]

約数ペア:

[(1, 18755000), (2, 9377500), (4, 4688750), (5, 3751000), (8, 2344375), (10, 1875500), (11, 1705000), (20, 937750), (22, 852500), (25, 750200), (31, 605000), (40, 468875), (44, 426250), (50, 375100), (55, 341000), (62, 302500), (88, 213125), (100, 187550), (110, 170500), (121, 155000), (124, 151250), (125, 150040), (155, 121000), (200, 93775), (220, 85250), (242, 77500), (248, 75625), (250, 75020), (275, 68200), (310, 60500), (341, 55000), (440, 42625), (484, 38750), (500, 37510), (550, 34100), (605, 31000), (620, 30250), (625, 30008), (682, 27500), (775, 24200), (968, 19375), (1000, 18755), (1100, 17050), (1210, 15500), (1240, 15125), (1250, 15004), (1364, 13750), (1375, 13640), (1550, 12100), (1705, 11000), (2200, 8525), (2420, 7750), (2500, 7502), (2728, 6875), (2750, 6820), (3025, 6200), (3100, 6050), (3410, 5500), (3751, 5000), (3875, 4840)]