25720320

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 160

約数和(自身を含む): 87503328

約数和(自身を除く): 61783008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 197, 204, 240, 255, 256, 272, 320, 340, 384, 394, 408, 480, 510, 512, 544, 591, 640, 680, 768, 788, 816, 960, 985, 1020, 1088, 1182, 1280, 1360, 1536, 1576, 1632, 1920, 1970, 2040, 2176, 2364, 2560, 2720, 2955, 3152, 3264, 3349, 3840, 3940, 4080, 4352, 4728, 5440, 5910, 6304, 6528, 6698, 7680, 7880, 8160, 8704, 9456, 10047, 10880, 11820, 12608, 13056, 13396, 15760, 16320, 16745, 18912, 20094, 21760, 23640, 25216, 26112, 26792, 31520, 32640, 33490, 37824, 40188, 43520, 47280, 50235, 50432, 53584, 63040, 65280, 66980, 75648, 80376, 94560, 100470, 100864, 107168, 126080, 130560, 133960, 151296, 160752, 189120, 200940, 214336, 252160, 267920, 302592, 321504, 378240, 401880, 428672, 504320, 535840, 643008, 756480, 803760, 857344, 1071680, 1286016, 1512960, 1607520, 1714688, 2143360, 2572032, 3215040, 4286720, 5144064, 6430080, 8573440, 12860160, 25720320]

約数ペア:

[(1, 25720320), (2, 12860160), (3, 8573440), (4, 6430080), (5, 5144064), (6, 4286720), (8, 3215040), (10, 2572032), (12, 2143360), (15, 1714688), (16, 1607520), (17, 1512960), (20, 1286016), (24, 1071680), (30, 857344), (32, 803760), (34, 756480), (40, 643008), (48, 535840), (51, 504320), (60, 428672), (64, 401880), (68, 378240), (80, 321504), (85, 302592), (96, 267920), (102, 252160), (120, 214336), (128, 200940), (136, 189120), (160, 160752), (170, 151296), (192, 133960), (197, 130560), (204, 126080), (240, 107168), (255, 100864), (256, 100470), (272, 94560), (320, 80376), (340, 75648), (384, 66980), (394, 65280), (408, 63040), (480, 53584), (510, 50432), (512, 50235), (544, 47280), (591, 43520), (640, 40188), (680, 37824), (768, 33490), (788, 32640), (816, 31520), (960, 26792), (985, 26112), (1020, 25216), (1088, 23640), (1182, 21760), (1280, 20094), (1360, 18912), (1536, 16745), (1576, 16320), (1632, 15760), (1920, 13396), (1970, 13056), (2040, 12608), (2176, 11820), (2364, 10880), (2560, 10047), (2720, 9456), (2955, 8704), (3152, 8160), (3264, 7880), (3349, 7680), (3840, 6698), (3940, 6528), (4080, 6304), (4352, 5910), (4728, 5440)]