64950140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{991}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 142490880

約数和(自身を除く): 77540740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 452, 565, 580, 991, 1130, 1982, 2260, 3277, 3964, 4955, 6554, 9910, 13108, 16385, 19820, 28739, 32770, 57478, 65540, 111983, 114956, 143695, 223966, 287390, 447932, 559915, 574780, 1119830, 2239660, 3247507, 6495014, 12990028, 16237535, 32475070, 64950140]

約数ペア:

[(1, 64950140), (2, 32475070), (4, 16237535), (5, 12990028), (10, 6495014), (20, 3247507), (29, 2239660), (58, 1119830), (113, 574780), (116, 559915), (145, 447932), (226, 287390), (290, 223966), (452, 143695), (565, 114956), (580, 111983), (991, 65540), (1130, 57478), (1982, 32770), (2260, 28739), (3277, 19820), (3964, 16385), (4955, 13108), (6554, 9910)]