642583680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19687}}^1$

素因数の和:19726

約数の個数: 128

約数和(自身を含む): 2168830080

約数和(自身を除く): 1526246400

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, 272, 320, 340, 384, 408, 480, 510, 544, 640, 680, 816, 960, 1020, 1088, 1360, 1632, 1920, 2040, 2176, 2720, 3264, 4080, 5440, 6528, 8160, 10880, 16320, 19687, 32640, 39374, 59061, 78748, 98435, 118122, 157496, 196870, 236244, 295305, 314992, 334679, 393740, 472488, 590610, 629984, 669358, 787480, 944976, 1004037, 1181220, 1259968, 1338716, 1574960, 1673395, 1889952, 2008074, 2362440, 2519936, 2677432, 3149920, 3346790, 3779904, 4016148, 4724880, 5020185, 5354864, 6299840, 6693580, 7559808, 8032296, 9449760, 10040370, 10709728, 12599680, 13387160, 16064592, 18899520, 20080740, 21419456, 26774320, 32129184, 37799040, 40161480, 42838912, 53548640, 64258368, 80322960, 107097280, 128516736, 160645920, 214194560, 321291840, 642583680]

約数ペア:

[(1, 642583680), (2, 321291840), (3, 214194560), (4, 160645920), (5, 128516736), (6, 107097280), (8, 80322960), (10, 64258368), (12, 53548640), (15, 42838912), (16, 40161480), (17, 37799040), (20, 32129184), (24, 26774320), (30, 21419456), (32, 20080740), (34, 18899520), (40, 16064592), (48, 13387160), (51, 12599680), (60, 10709728), (64, 10040370), (68, 9449760), (80, 8032296), (85, 7559808), (96, 6693580), (102, 6299840), (120, 5354864), (128, 5020185), (136, 4724880), (160, 4016148), (170, 3779904), (192, 3346790), (204, 3149920), (240, 2677432), (255, 2519936), (272, 2362440), (320, 2008074), (340, 1889952), (384, 1673395), (408, 1574960), (480, 1338716), (510, 1259968), (544, 1181220), (640, 1004037), (680, 944976), (816, 787480), (960, 669358), (1020, 629984), (1088, 590610), (1360, 472488), (1632, 393740), (1920, 334679), (2040, 314992), (2176, 295305), (2720, 236244), (3264, 196870), (4080, 157496), (5440, 118122), (6528, 98435), (8160, 78748), (10880, 59061), (16320, 39374), (19687, 32640)]