19770240

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1471}}^1$

素因数の和:1500

約数の個数: 128

約数和(自身を含む): 72069120

約数和(自身を除く): 52298880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1471, 1680, 1920, 2240, 2688, 2942, 3360, 4413, 4480, 5884, 6720, 7355, 8826, 10297, 11768, 13440, 14710, 17652, 20594, 22065, 23536, 29420, 30891, 35304, 41188, 44130, 47072, 51485, 58840, 61782, 70608, 82376, 88260, 94144, 102970, 117680, 123564, 141216, 154455, 164752, 176520, 188288, 205940, 235360, 247128, 282432, 308910, 329504, 353040, 411880, 470720, 494256, 564864, 617820, 659008, 706080, 823760, 941440, 988512, 1235640, 1318016, 1412160, 1647520, 1977024, 2471280, 2824320, 3295040, 3954048, 4942560, 6590080, 9885120, 19770240]

約数ペア:

[(1, 19770240), (2, 9885120), (3, 6590080), (4, 4942560), (5, 3954048), (6, 3295040), (7, 2824320), (8, 2471280), (10, 1977024), (12, 1647520), (14, 1412160), (15, 1318016), (16, 1235640), (20, 988512), (21, 941440), (24, 823760), (28, 706080), (30, 659008), (32, 617820), (35, 564864), (40, 494256), (42, 470720), (48, 411880), (56, 353040), (60, 329504), (64, 308910), (70, 282432), (80, 247128), (84, 235360), (96, 205940), (105, 188288), (112, 176520), (120, 164752), (128, 154455), (140, 141216), (160, 123564), (168, 117680), (192, 102970), (210, 94144), (224, 88260), (240, 82376), (280, 70608), (320, 61782), (336, 58840), (384, 51485), (420, 47072), (448, 44130), (480, 41188), (560, 35304), (640, 30891), (672, 29420), (840, 23536), (896, 22065), (960, 20594), (1120, 17652), (1344, 14710), (1471, 13440), (1680, 11768), (1920, 10297), (2240, 8826), (2688, 7355), (2942, 6720), (3360, 5884), (4413, 4480)]