128465300

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{31333}}^1$

素因数の和:31388

約数の個数: 36

約数和(自身を含む): 285578076

約数和(自身を除く): 157112776

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 31333, 62666, 125332, 156665, 313330, 626660, 783325, 1284653, 1566650, 2569306, 3133300, 5138612, 6423265, 12846530, 25693060, 32116325, 64232650, 128465300]

約数ペア:

[(1, 128465300), (2, 64232650), (4, 32116325), (5, 25693060), (10, 12846530), (20, 6423265), (25, 5138612), (41, 3133300), (50, 2569306), (82, 1566650), (100, 1284653), (164, 783325), (205, 626660), (410, 313330), (820, 156665), (1025, 125332), (2050, 62666), (4100, 31333)]