157286720

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1060

約数の個数: 112

約数和(自身を含む): 410657040

約数和(自身を除く): 253370320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 64, 68, 80, 85, 116, 136, 145, 160, 170, 232, 272, 290, 320, 340, 464, 493, 544, 580, 680, 928, 986, 997, 1088, 1160, 1360, 1856, 1972, 1994, 2320, 2465, 2720, 3944, 3988, 4640, 4930, 4985, 5440, 7888, 7976, 9280, 9860, 9970, 15776, 15952, 16949, 19720, 19940, 28913, 31552, 31904, 33898, 39440, 39880, 57826, 63808, 67796, 78880, 79760, 84745, 115652, 135592, 144565, 157760, 159520, 169490, 231304, 271184, 289130, 319040, 338980, 462608, 491521, 542368, 578260, 677960, 925216, 983042, 1084736, 1156520, 1355920, 1850432, 1966084, 2313040, 2457605, 2711840, 3932168, 4626080, 4915210, 5423680, 7864336, 9252160, 9830420, 15728672, 19660840, 31457344, 39321680, 78643360, 157286720]

約数ペア:

[(1, 157286720), (2, 78643360), (4, 39321680), (5, 31457344), (8, 19660840), (10, 15728672), (16, 9830420), (17, 9252160), (20, 7864336), (29, 5423680), (32, 4915210), (34, 4626080), (40, 3932168), (58, 2711840), (64, 2457605), (68, 2313040), (80, 1966084), (85, 1850432), (116, 1355920), (136, 1156520), (145, 1084736), (160, 983042), (170, 925216), (232, 677960), (272, 578260), (290, 542368), (320, 491521), (340, 462608), (464, 338980), (493, 319040), (544, 289130), (580, 271184), (680, 231304), (928, 169490), (986, 159520), (997, 157760), (1088, 144565), (1160, 135592), (1360, 115652), (1856, 84745), (1972, 79760), (1994, 78880), (2320, 67796), (2465, 63808), (2720, 57826), (3944, 39880), (3988, 39440), (4640, 33898), (4930, 31904), (4985, 31552), (5440, 28913), (7888, 19940), (7976, 19720), (9280, 16949), (9860, 15952), (9970, 15776)]