21646198960

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^2\times {\mathrm{15767}}^1$

素因数の和:16042

約数の個数: 60

約数和(自身を含む): 50717740464

約数和(自身を除く): 29071541504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 15767, 17161, 31534, 34322, 63068, 68644, 78835, 85805, 126136, 137288, 157670, 171610, 252272, 274576, 315340, 343220, 630680, 686440, 1261360, 1372880, 2065477, 4130954, 8261908, 10327385, 16523816, 20654770, 33047632, 41309540, 82619080, 165238160, 270577487, 541154974, 1082309948, 1352887435, 2164619896, 2705774870, 4329239792, 5411549740, 10823099480, 21646198960]

約数ペア:

[(1, 21646198960), (2, 10823099480), (4, 5411549740), (5, 4329239792), (8, 2705774870), (10, 2164619896), (16, 1352887435), (20, 1082309948), (40, 541154974), (80, 270577487), (131, 165238160), (262, 82619080), (524, 41309540), (655, 33047632), (1048, 20654770), (1310, 16523816), (2096, 10327385), (2620, 8261908), (5240, 4130954), (10480, 2065477), (15767, 1372880), (17161, 1261360), (31534, 686440), (34322, 630680), (63068, 343220), (68644, 315340), (78835, 274576), (85805, 252272), (126136, 171610), (137288, 157670)]