64447900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1429}}^1$

素因数の和:1495

約数の個数: 72

約数和(自身を含む): 156396240

約数和(自身を除く): 91948340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 164, 205, 220, 275, 410, 451, 550, 820, 902, 1025, 1100, 1429, 1804, 2050, 2255, 2858, 4100, 4510, 5716, 7145, 9020, 11275, 14290, 15719, 22550, 28580, 31438, 35725, 45100, 58589, 62876, 71450, 78595, 117178, 142900, 157190, 234356, 292945, 314380, 392975, 585890, 644479, 785950, 1171780, 1288958, 1464725, 1571900, 2577916, 2929450, 3222395, 5858900, 6444790, 12889580, 16111975, 32223950, 64447900]

約数ペア:

[(1, 64447900), (2, 32223950), (4, 16111975), (5, 12889580), (10, 6444790), (11, 5858900), (20, 3222395), (22, 2929450), (25, 2577916), (41, 1571900), (44, 1464725), (50, 1288958), (55, 1171780), (82, 785950), (100, 644479), (110, 585890), (164, 392975), (205, 314380), (220, 292945), (275, 234356), (410, 157190), (451, 142900), (550, 117178), (820, 78595), (902, 71450), (1025, 62876), (1100, 58589), (1429, 45100), (1804, 35725), (2050, 31438), (2255, 28580), (2858, 22550), (4100, 15719), (4510, 14290), (5716, 11275), (7145, 9020)]