20163572360

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:715

約数の個数: 128

約数和(自身を含む): 46812820320

約数和(自身を除く): 26649247960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 97, 146, 194, 257, 277, 292, 365, 388, 485, 514, 554, 584, 730, 776, 970, 1028, 1108, 1285, 1385, 1460, 1940, 2056, 2216, 2570, 2770, 2920, 3880, 5140, 5540, 7081, 10280, 11080, 14162, 18761, 20221, 24929, 26869, 28324, 35405, 37522, 40442, 49858, 53738, 56648, 70810, 71189, 75044, 80884, 93805, 99716, 101105, 107476, 124645, 134345, 141620, 142378, 150088, 161768, 187610, 199432, 202210, 214952, 249290, 268690, 283240, 284756, 355945, 375220, 404420, 498580, 537380, 569512, 711890, 750440, 808840, 997160, 1074760, 1423780, 1819817, 1961437, 2847560, 3639634, 3922874, 5196797, 6905333, 7279268, 7845748, 9099085, 9807185, 10393594, 13810666, 14558536, 15691496, 18198170, 19614370, 20787188, 25983985, 27621332, 34526665, 36396340, 39228740, 41574376, 51967970, 55242664, 69053330, 72792680, 78457480, 103935940, 138106660, 207871880, 276213320, 504089309, 1008178618, 2016357236, 2520446545, 4032714472, 5040893090, 10081786180, 20163572360]

約数ペア:

[(1, 20163572360), (2, 10081786180), (4, 5040893090), (5, 4032714472), (8, 2520446545), (10, 2016357236), (20, 1008178618), (40, 504089309), (73, 276213320), (97, 207871880), (146, 138106660), (194, 103935940), (257, 78457480), (277, 72792680), (292, 69053330), (365, 55242664), (388, 51967970), (485, 41574376), (514, 39228740), (554, 36396340), (584, 34526665), (730, 27621332), (776, 25983985), (970, 20787188), (1028, 19614370), (1108, 18198170), (1285, 15691496), (1385, 14558536), (1460, 13810666), (1940, 10393594), (2056, 9807185), (2216, 9099085), (2570, 7845748), (2770, 7279268), (2920, 6905333), (3880, 5196797), (5140, 3922874), (5540, 3639634), (7081, 2847560), (10280, 1961437), (11080, 1819817), (14162, 1423780), (18761, 1074760), (20221, 997160), (24929, 808840), (26869, 750440), (28324, 711890), (35405, 569512), (37522, 537380), (40442, 498580), (49858, 404420), (53738, 375220), (56648, 355945), (70810, 284756), (71189, 283240), (75044, 268690), (80884, 249290), (93805, 214952), (99716, 202210), (101105, 199432), (107476, 187610), (124645, 161768), (134345, 150088), (141620, 142378)]