18750240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:499

約数の個数: 144

約数和(自身を含む): 66339000

約数和(自身を除く): 47588760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 96, 116, 120, 144, 145, 160, 174, 180, 232, 240, 261, 288, 290, 348, 360, 435, 449, 464, 480, 522, 580, 696, 720, 870, 898, 928, 1044, 1160, 1305, 1347, 1392, 1440, 1740, 1796, 2088, 2245, 2320, 2610, 2694, 2784, 3480, 3592, 4041, 4176, 4490, 4640, 5220, 5388, 6735, 6960, 7184, 8082, 8352, 8980, 10440, 10776, 13021, 13470, 13920, 14368, 16164, 17960, 20205, 20880, 21552, 26042, 26940, 32328, 35920, 39063, 40410, 41760, 43104, 52084, 53880, 64656, 65105, 71840, 78126, 80820, 104168, 107760, 117189, 129312, 130210, 156252, 161640, 195315, 208336, 215520, 234378, 260420, 312504, 323280, 390630, 416672, 468756, 520840, 585945, 625008, 646560, 781260, 937512, 1041680, 1171890, 1250016, 1562520, 1875024, 2083360, 2343780, 3125040, 3750048, 4687560, 6250080, 9375120, 18750240]

約数ペア:

[(1, 18750240), (2, 9375120), (3, 6250080), (4, 4687560), (5, 3750048), (6, 3125040), (8, 2343780), (9, 2083360), (10, 1875024), (12, 1562520), (15, 1250016), (16, 1171890), (18, 1041680), (20, 937512), (24, 781260), (29, 646560), (30, 625008), (32, 585945), (36, 520840), (40, 468756), (45, 416672), (48, 390630), (58, 323280), (60, 312504), (72, 260420), (80, 234378), (87, 215520), (90, 208336), (96, 195315), (116, 161640), (120, 156252), (144, 130210), (145, 129312), (160, 117189), (174, 107760), (180, 104168), (232, 80820), (240, 78126), (261, 71840), (288, 65105), (290, 64656), (348, 53880), (360, 52084), (435, 43104), (449, 41760), (464, 40410), (480, 39063), (522, 35920), (580, 32328), (696, 26940), (720, 26042), (870, 21552), (898, 20880), (928, 20205), (1044, 17960), (1160, 16164), (1305, 14368), (1347, 13920), (1392, 13470), (1440, 13021), (1740, 10776), (1796, 10440), (2088, 8980), (2245, 8352), (2320, 8082), (2610, 7184), (2694, 6960), (2784, 6735), (3480, 5388), (3592, 5220), (4041, 4640), (4176, 4490)]