28784665

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1543}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 43577856

約数和(自身を除く): 14793191

約数列:

[1, 5, 7, 13, 35, 41, 65, 91, 205, 287, 455, 533, 1435, 1543, 2665, 3731, 7715, 10801, 18655, 20059, 54005, 63263, 100295, 140413, 316315, 442841, 702065, 822419, 2214205, 4112095, 5756933, 28784665]

約数ペア:

[(1, 28784665), (5, 5756933), (7, 4112095), (13, 2214205), (35, 822419), (41, 702065), (65, 442841), (91, 316315), (205, 140413), (287, 100295), (455, 63263), (533, 54005), (1435, 20059), (1543, 18655), (2665, 10801), (3731, 7715)]