28550225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 42425856

約数和(自身を除く): 13875631

約数列:

[1, 5, 11, 17, 25, 31, 55, 85, 155, 187, 197, 275, 341, 425, 527, 775, 935, 985, 1705, 2167, 2635, 3349, 4675, 4925, 5797, 6107, 8525, 10835, 13175, 16745, 28985, 30535, 36839, 54175, 67177, 83725, 103819, 144925, 152675, 184195, 335885, 519095, 920975, 1142009, 1679425, 2595475, 5710045, 28550225]

約数ペア:

[(1, 28550225), (5, 5710045), (11, 2595475), (17, 1679425), (25, 1142009), (31, 920975), (55, 519095), (85, 335885), (155, 184195), (187, 152675), (197, 144925), (275, 103819), (341, 83725), (425, 67177), (527, 54175), (775, 36839), (935, 30535), (985, 28985), (1705, 16745), (2167, 13175), (2635, 10835), (3349, 8525), (4675, 6107), (4925, 5797)]