2018704700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{647}}^1\times {\mathrm{761}}^1$

素因数の和:1463

約数の個数: 72

約数和(自身を含む): 4500274464

約数和(自身を除く): 2481569764

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 647, 761, 820, 1025, 1294, 1522, 2050, 2588, 3044, 3235, 3805, 4100, 6470, 7610, 12940, 15220, 16175, 19025, 26527, 31201, 32350, 38050, 53054, 62402, 64700, 76100, 106108, 124804, 132635, 156005, 265270, 312010, 492367, 530540, 624020, 663175, 780025, 984734, 1326350, 1560050, 1969468, 2461835, 2652700, 3120100, 4923670, 9847340, 12309175, 20187047, 24618350, 40374094, 49236700, 80748188, 100935235, 201870470, 403740940, 504676175, 1009352350, 2018704700]

約数ペア:

[(1, 2018704700), (2, 1009352350), (4, 504676175), (5, 403740940), (10, 201870470), (20, 100935235), (25, 80748188), (41, 49236700), (50, 40374094), (82, 24618350), (100, 20187047), (164, 12309175), (205, 9847340), (410, 4923670), (647, 3120100), (761, 2652700), (820, 2461835), (1025, 1969468), (1294, 1560050), (1522, 1326350), (2050, 984734), (2588, 780025), (3044, 663175), (3235, 624020), (3805, 530540), (4100, 492367), (6470, 312010), (7610, 265270), (12940, 156005), (15220, 132635), (16175, 124804), (19025, 106108), (26527, 76100), (31201, 64700), (32350, 62402), (38050, 53054)]