25990195

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:89

約数の個数: 72

約数和(自身を含む): 43781472

約数和(自身を除く): 17791277

約数列:

[1, 5, 7, 11, 17, 19, 35, 55, 77, 85, 95, 119, 121, 133, 187, 209, 323, 361, 385, 595, 605, 665, 847, 935, 1045, 1309, 1463, 1615, 1805, 2057, 2261, 2299, 2527, 3553, 3971, 4235, 6137, 6545, 7315, 10285, 11305, 11495, 12635, 14399, 16093, 17765, 19855, 24871, 27797, 30685, 39083, 42959, 43681, 67507, 71995, 80465, 124355, 138985, 195415, 214795, 218405, 273581, 305767, 337535, 472549, 742577, 1367905, 1528835, 2362745, 3712885, 5198039, 25990195]

約数ペア:

[(1, 25990195), (5, 5198039), (7, 3712885), (11, 2362745), (17, 1528835), (19, 1367905), (35, 742577), (55, 472549), (77, 337535), (85, 305767), (95, 273581), (119, 218405), (121, 214795), (133, 195415), (187, 138985), (209, 124355), (323, 80465), (361, 71995), (385, 67507), (595, 43681), (605, 42959), (665, 39083), (847, 30685), (935, 27797), (1045, 24871), (1309, 19855), (1463, 17765), (1615, 16093), (1805, 14399), (2057, 12635), (2261, 11495), (2299, 11305), (2527, 10285), (3553, 7315), (3971, 6545), (4235, 6137)]