249489280

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{997}}^1$

素因数の和:1056

約数の個数: 128

約数和(自身を含む): 659638080

約数和(自身を除く): 410148800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 128, 136, 160, 170, 184, 230, 272, 320, 340, 368, 391, 460, 544, 640, 680, 736, 782, 920, 997, 1088, 1360, 1472, 1564, 1840, 1955, 1994, 2176, 2720, 2944, 3128, 3680, 3910, 3988, 4985, 5440, 6256, 7360, 7820, 7976, 9970, 10880, 12512, 14720, 15640, 15952, 16949, 19940, 22931, 25024, 31280, 31904, 33898, 39880, 45862, 50048, 62560, 63808, 67796, 79760, 84745, 91724, 114655, 125120, 127616, 135592, 159520, 169490, 183448, 229310, 250240, 271184, 319040, 338980, 366896, 389827, 458620, 542368, 638080, 677960, 733792, 779654, 917240, 1084736, 1355920, 1467584, 1559308, 1834480, 1949135, 2169472, 2711840, 2935168, 3118616, 3668960, 3898270, 5423680, 6237232, 7337920, 7796540, 10847360, 12474464, 14675840, 15593080, 24948928, 31186160, 49897856, 62372320, 124744640, 249489280]

約数ペア:

[(1, 249489280), (2, 124744640), (4, 62372320), (5, 49897856), (8, 31186160), (10, 24948928), (16, 15593080), (17, 14675840), (20, 12474464), (23, 10847360), (32, 7796540), (34, 7337920), (40, 6237232), (46, 5423680), (64, 3898270), (68, 3668960), (80, 3118616), (85, 2935168), (92, 2711840), (115, 2169472), (128, 1949135), (136, 1834480), (160, 1559308), (170, 1467584), (184, 1355920), (230, 1084736), (272, 917240), (320, 779654), (340, 733792), (368, 677960), (391, 638080), (460, 542368), (544, 458620), (640, 389827), (680, 366896), (736, 338980), (782, 319040), (920, 271184), (997, 250240), (1088, 229310), (1360, 183448), (1472, 169490), (1564, 159520), (1840, 135592), (1955, 127616), (1994, 125120), (2176, 114655), (2720, 91724), (2944, 84745), (3128, 79760), (3680, 67796), (3910, 63808), (3988, 62560), (4985, 50048), (5440, 45862), (6256, 39880), (7360, 33898), (7820, 31904), (7976, 31280), (9970, 25024), (10880, 22931), (12512, 19940), (14720, 16949), (15640, 15952)]