20173488080

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{280499}}^1$

素因数の和:280572

約数の個数: 80

約数和(自身を含む): 50086080000

約数和(自身を除く): 29912591920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 464, 496, 580, 620, 899, 1160, 1240, 1798, 2320, 2480, 3596, 4495, 7192, 8990, 14384, 17980, 35960, 71920, 280499, 560998, 1121996, 1402495, 2243992, 2804990, 4487984, 5609980, 8134471, 8695469, 11219960, 16268942, 17390938, 22439920, 32537884, 34781876, 40672355, 43477345, 65075768, 69563752, 81344710, 86954690, 130151536, 139127504, 162689420, 173909380, 252168601, 325378840, 347818760, 504337202, 650757680, 695637520, 1008674404, 1260843005, 2017348808, 2521686010, 4034697616, 5043372020, 10086744040, 20173488080]

約数ペア:

[(1, 20173488080), (2, 10086744040), (4, 5043372020), (5, 4034697616), (8, 2521686010), (10, 2017348808), (16, 1260843005), (20, 1008674404), (29, 695637520), (31, 650757680), (40, 504337202), (58, 347818760), (62, 325378840), (80, 252168601), (116, 173909380), (124, 162689420), (145, 139127504), (155, 130151536), (232, 86954690), (248, 81344710), (290, 69563752), (310, 65075768), (464, 43477345), (496, 40672355), (580, 34781876), (620, 32537884), (899, 22439920), (1160, 17390938), (1240, 16268942), (1798, 11219960), (2320, 8695469), (2480, 8134471), (3596, 5609980), (4495, 4487984), (7192, 2804990), (8990, 2243992), (14384, 1402495), (17980, 1121996), (35960, 560998), (71920, 280499)]