261185280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4001}}^1$

素因数の和:4042

約数の個数: 144

約数和(自身を含む): 883449504

約数和(自身を除く): 622264224

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, 204, 240, 255, 256, 272, 320, 340, 384, 408, 480, 510, 544, 640, 680, 768, 816, 960, 1020, 1088, 1280, 1360, 1632, 1920, 2040, 2176, 2720, 3264, 3840, 4001, 4080, 4352, 5440, 6528, 8002, 8160, 10880, 12003, 13056, 16004, 16320, 20005, 21760, 24006, 32008, 32640, 40010, 48012, 60015, 64016, 65280, 68017, 80020, 96024, 120030, 128032, 136034, 160040, 192048, 204051, 240060, 256064, 272068, 320080, 340085, 384096, 408102, 480120, 512128, 544136, 640160, 680170, 768192, 816204, 960240, 1020255, 1024256, 1088272, 1280320, 1360340, 1536384, 1632408, 1920480, 2040510, 2176544, 2560640, 2720680, 3072768, 3264816, 3840960, 4081020, 4353088, 5121280, 5441360, 6529632, 7681920, 8162040, 8706176, 10882720, 13059264, 15363840, 16324080, 17412352, 21765440, 26118528, 32648160, 43530880, 52237056, 65296320, 87061760, 130592640, 261185280]

約数ペア:

[(1, 261185280), (2, 130592640), (3, 87061760), (4, 65296320), (5, 52237056), (6, 43530880), (8, 32648160), (10, 26118528), (12, 21765440), (15, 17412352), (16, 16324080), (17, 15363840), (20, 13059264), (24, 10882720), (30, 8706176), (32, 8162040), (34, 7681920), (40, 6529632), (48, 5441360), (51, 5121280), (60, 4353088), (64, 4081020), (68, 3840960), (80, 3264816), (85, 3072768), (96, 2720680), (102, 2560640), (120, 2176544), (128, 2040510), (136, 1920480), (160, 1632408), (170, 1536384), (192, 1360340), (204, 1280320), (240, 1088272), (255, 1024256), (256, 1020255), (272, 960240), (320, 816204), (340, 768192), (384, 680170), (408, 640160), (480, 544136), (510, 512128), (544, 480120), (640, 408102), (680, 384096), (768, 340085), (816, 320080), (960, 272068), (1020, 256064), (1088, 240060), (1280, 204051), (1360, 192048), (1632, 160040), (1920, 136034), (2040, 128032), (2176, 120030), (2720, 96024), (3264, 80020), (3840, 68017), (4001, 65280), (4080, 64016), (4352, 60015), (5440, 48012), (6528, 40010), (8002, 32640), (8160, 32008), (10880, 24006), (12003, 21760), (13056, 20005), (16004, 16320)]