20105354900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{71473}}^1$

素因数の和:71613

約数の個数: 72

約数和(自身を含む): 45598982520

約数和(自身を除く): 25493627620

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 97, 100, 116, 145, 194, 290, 388, 485, 580, 725, 970, 1450, 1940, 2425, 2813, 2900, 4850, 5626, 9700, 11252, 14065, 28130, 56260, 70325, 71473, 140650, 142946, 281300, 285892, 357365, 714730, 1429460, 1786825, 2072717, 3573650, 4145434, 6932881, 7147300, 8290868, 10363585, 13865762, 20727170, 27731524, 34664405, 41454340, 51817925, 69328810, 103635850, 138657620, 173322025, 201053549, 207271700, 346644050, 402107098, 693288100, 804214196, 1005267745, 2010535490, 4021070980, 5026338725, 10052677450, 20105354900]

約数ペア:

[(1, 20105354900), (2, 10052677450), (4, 5026338725), (5, 4021070980), (10, 2010535490), (20, 1005267745), (25, 804214196), (29, 693288100), (50, 402107098), (58, 346644050), (97, 207271700), (100, 201053549), (116, 173322025), (145, 138657620), (194, 103635850), (290, 69328810), (388, 51817925), (485, 41454340), (580, 34664405), (725, 27731524), (970, 20727170), (1450, 13865762), (1940, 10363585), (2425, 8290868), (2813, 7147300), (2900, 6932881), (4850, 4145434), (5626, 3573650), (9700, 2072717), (11252, 1786825), (14065, 1429460), (28130, 714730), (56260, 357365), (70325, 285892), (71473, 281300), (140650, 142946)]