20197252012

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{797}}^1$

素因数の和:1307

約数の個数: 96

約数和(自身を含む): 42324541056

約数和(自身を除く): 22127289044

約数列:

[1, 2, 4, 7, 14, 28, 37, 61, 74, 122, 148, 244, 259, 401, 427, 518, 797, 802, 854, 1036, 1594, 1604, 1708, 2257, 2807, 3188, 4514, 5579, 5614, 9028, 11158, 11228, 14837, 15799, 22316, 24461, 29489, 29674, 31598, 48617, 48922, 58978, 59348, 63196, 97234, 97844, 103859, 117956, 171227, 194468, 206423, 207718, 319597, 340319, 342454, 412846, 415436, 639194, 680638, 684908, 825692, 905057, 1278388, 1361276, 1798829, 1810114, 2237179, 3597658, 3620228, 4474358, 6335399, 7195316, 8948716, 11825089, 12591803, 12670798, 19495417, 23650178, 25183606, 25341596, 38990834, 47300356, 50367212, 77981668, 82775623, 136467919, 165551246, 272935838, 331102492, 545871676, 721330429, 1442660858, 2885321716, 5049313003, 10098626006, 20197252012]

約数ペア:

[(1, 20197252012), (2, 10098626006), (4, 5049313003), (7, 2885321716), (14, 1442660858), (28, 721330429), (37, 545871676), (61, 331102492), (74, 272935838), (122, 165551246), (148, 136467919), (244, 82775623), (259, 77981668), (401, 50367212), (427, 47300356), (518, 38990834), (797, 25341596), (802, 25183606), (854, 23650178), (1036, 19495417), (1594, 12670798), (1604, 12591803), (1708, 11825089), (2257, 8948716), (2807, 7195316), (3188, 6335399), (4514, 4474358), (5579, 3620228), (5614, 3597658), (9028, 2237179), (11158, 1810114), (11228, 1798829), (14837, 1361276), (15799, 1278388), (22316, 905057), (24461, 825692), (29489, 684908), (29674, 680638), (31598, 639194), (48617, 415436), (48922, 412846), (58978, 342454), (59348, 340319), (63196, 319597), (97234, 207718), (97844, 206423), (103859, 194468), (117956, 171227)]