21383280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1747}}^1$

素因数の和:1783

約数の個数: 120

約数和(自身を含む): 76079952

約数和(自身を除く): 54696672

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1530, 1747, 2040, 2448, 3060, 3494, 4080, 5241, 6120, 6988, 8735, 10482, 12240, 13976, 15723, 17470, 20964, 26205, 27952, 29699, 31446, 34940, 41928, 52410, 59398, 62892, 69880, 78615, 83856, 89097, 104820, 118796, 125784, 139760, 148495, 157230, 178194, 209640, 237592, 251568, 267291, 296990, 314460, 356388, 419280, 445485, 475184, 534582, 593980, 628920, 712776, 890970, 1069164, 1187960, 1257840, 1336455, 1425552, 1781940, 2138328, 2375920, 2672910, 3563880, 4276656, 5345820, 7127760, 10691640, 21383280]

約数ペア:

[(1, 21383280), (2, 10691640), (3, 7127760), (4, 5345820), (5, 4276656), (6, 3563880), (8, 2672910), (9, 2375920), (10, 2138328), (12, 1781940), (15, 1425552), (16, 1336455), (17, 1257840), (18, 1187960), (20, 1069164), (24, 890970), (30, 712776), (34, 628920), (36, 593980), (40, 534582), (45, 475184), (48, 445485), (51, 419280), (60, 356388), (68, 314460), (72, 296990), (80, 267291), (85, 251568), (90, 237592), (102, 209640), (120, 178194), (136, 157230), (144, 148495), (153, 139760), (170, 125784), (180, 118796), (204, 104820), (240, 89097), (255, 83856), (272, 78615), (306, 69880), (340, 62892), (360, 59398), (408, 52410), (510, 41928), (612, 34940), (680, 31446), (720, 29699), (765, 27952), (816, 26205), (1020, 20964), (1224, 17470), (1360, 15723), (1530, 13976), (1747, 12240), (2040, 10482), (2448, 8735), (3060, 6988), (3494, 6120), (4080, 5241)]