680581825

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2971}}^1$

素因数の和:3023

約数の個数: 72

約数和(自身を含む): 1134329184

約数和(自身を除く): 453747359

約数列:

[1, 5, 7, 11, 17, 25, 35, 49, 55, 77, 85, 119, 175, 187, 245, 275, 385, 425, 539, 595, 833, 935, 1225, 1309, 1925, 2695, 2971, 2975, 4165, 4675, 6545, 9163, 13475, 14855, 20797, 20825, 32681, 32725, 45815, 50507, 74275, 103985, 145579, 163405, 228767, 229075, 252535, 353549, 519925, 555577, 727895, 817025, 1143835, 1262675, 1601369, 1767745, 2474843, 2777885, 3639475, 3889039, 5719175, 8006845, 8838725, 12374215, 13889425, 19445195, 27223273, 40034225, 61871075, 97225975, 136116365, 680581825]

約数ペア:

[(1, 680581825), (5, 136116365), (7, 97225975), (11, 61871075), (17, 40034225), (25, 27223273), (35, 19445195), (49, 13889425), (55, 12374215), (77, 8838725), (85, 8006845), (119, 5719175), (175, 3889039), (187, 3639475), (245, 2777885), (275, 2474843), (385, 1767745), (425, 1601369), (539, 1262675), (595, 1143835), (833, 817025), (935, 727895), (1225, 555577), (1309, 519925), (1925, 353549), (2695, 252535), (2971, 229075), (2975, 228767), (4165, 163405), (4675, 145579), (6545, 103985), (9163, 74275), (13475, 50507), (14855, 45815), (20797, 32725), (20825, 32681)]