20512191588

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{727}}^1\times {\mathrm{877}}^1$

素因数の和:2001

約数の個数: 96

約数和(自身を含む): 54980050944

約数和(自身を除く): 34467859356

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 383, 727, 766, 877, 1149, 1454, 1532, 1754, 2181, 2298, 2631, 2681, 2908, 3508, 4362, 4596, 5089, 5262, 5362, 6139, 8043, 8724, 10178, 10524, 10724, 12278, 15267, 16086, 18417, 20356, 24556, 30534, 32172, 36834, 61068, 73668, 278441, 335891, 556882, 637579, 671782, 835323, 1007673, 1113764, 1275158, 1343564, 1670646, 1912737, 1949087, 2015346, 2351237, 2550316, 3341292, 3825474, 3898174, 4030692, 4463053, 4702474, 5847261, 7053711, 7650948, 7796348, 8926106, 9404948, 11694522, 13389159, 14107422, 17852212, 23389044, 26778318, 28214844, 53556636, 244192757, 488385514, 732578271, 976771028, 1465156542, 1709349299, 2930313084, 3418698598, 5128047897, 6837397196, 10256095794, 20512191588]

約数ペア:

[(1, 20512191588), (2, 10256095794), (3, 6837397196), (4, 5128047897), (6, 3418698598), (7, 2930313084), (12, 1709349299), (14, 1465156542), (21, 976771028), (28, 732578271), (42, 488385514), (84, 244192757), (383, 53556636), (727, 28214844), (766, 26778318), (877, 23389044), (1149, 17852212), (1454, 14107422), (1532, 13389159), (1754, 11694522), (2181, 9404948), (2298, 8926106), (2631, 7796348), (2681, 7650948), (2908, 7053711), (3508, 5847261), (4362, 4702474), (4596, 4463053), (5089, 4030692), (5262, 3898174), (5362, 3825474), (6139, 3341292), (8043, 2550316), (8724, 2351237), (10178, 2015346), (10524, 1949087), (10724, 1912737), (12278, 1670646), (15267, 1343564), (16086, 1275158), (18417, 1113764), (20356, 1007673), (24556, 835323), (30534, 671782), (32172, 637579), (36834, 556882), (61068, 335891), (73668, 278441)]