17981821055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{1097}}^1$

素因数の和:1424

約数の個数: 64

約数和(自身を含む): 25044940800

約数和(自身を除く): 7063119745

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 239, 319, 473, 1097, 1195, 1247, 1595, 2365, 2629, 5485, 6235, 6931, 10277, 12067, 13145, 13717, 31813, 34655, 47171, 51385, 60335, 68585, 76241, 113047, 159065, 235855, 262183, 298033, 349943, 381205, 518881, 565235, 1310915, 1367959, 1490165, 1749715, 2594405, 2884013, 3278363, 6839795, 7603307, 11273869, 14420065, 15047549, 16391815, 38016535, 56369345, 75237745, 83636377, 124012559, 326942201, 418181885, 620062795, 1634711005, 3596364211, 17981821055]

約数ペア:

[(1, 17981821055), (5, 3596364211), (11, 1634711005), (29, 620062795), (43, 418181885), (55, 326942201), (145, 124012559), (215, 83636377), (239, 75237745), (319, 56369345), (473, 38016535), (1097, 16391815), (1195, 15047549), (1247, 14420065), (1595, 11273869), (2365, 7603307), (2629, 6839795), (5485, 3278363), (6235, 2884013), (6931, 2594405), (10277, 1749715), (12067, 1490165), (13145, 1367959), (13717, 1310915), (31813, 565235), (34655, 518881), (47171, 381205), (51385, 349943), (60335, 298033), (68585, 262183), (76241, 235855), (113047, 159065)]