28636075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 41622336

約数和(自身を除く): 12986261

約数列:

[1, 5, 13, 17, 25, 65, 71, 73, 85, 221, 325, 355, 365, 425, 923, 949, 1105, 1207, 1241, 1775, 1825, 4615, 4745, 5183, 5525, 6035, 6205, 15691, 16133, 23075, 23725, 25915, 30175, 31025, 67379, 78455, 80665, 88111, 129575, 336895, 392275, 403325, 440555, 1145443, 1684475, 2202775, 5727215, 28636075]

約数ペア:

[(1, 28636075), (5, 5727215), (13, 2202775), (17, 1684475), (25, 1145443), (65, 440555), (71, 403325), (73, 392275), (85, 336895), (221, 129575), (325, 88111), (355, 80665), (365, 78455), (425, 67379), (923, 31025), (949, 30175), (1105, 25915), (1207, 23725), (1241, 23075), (1775, 16133), (1825, 15691), (4615, 6205), (4745, 6035), (5183, 5525)]