128528775

素因数分解:

$3^5\times 5^2\times {\mathrm{21157}}^1$

素因数の和:21182

約数の個数: 36

約数和(自身を含む): 238746872

約数和(自身を除く): 110218097

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 6075, 21157, 63471, 105785, 190413, 317355, 528925, 571239, 952065, 1586775, 1713717, 2856195, 4760325, 5141151, 8568585, 14280975, 25705755, 42842925, 128528775]

約数ペア:

[(1, 128528775), (3, 42842925), (5, 25705755), (9, 14280975), (15, 8568585), (25, 5141151), (27, 4760325), (45, 2856195), (75, 1713717), (81, 1586775), (135, 952065), (225, 571239), (243, 528925), (405, 317355), (675, 190413), (1215, 105785), (2025, 63471), (6075, 21157)]