2780455975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{541}}^1\times {\mathrm{1699}}^1$

素因数の和:2272

約数の個数: 36

約数和(自身を含む): 3798932200

約数和(自身を除く): 1018476225

約数列:

[1, 5, 11, 25, 55, 121, 275, 541, 605, 1699, 2705, 3025, 5951, 8495, 13525, 18689, 29755, 42475, 65461, 93445, 148775, 205579, 327305, 467225, 919159, 1027895, 1636525, 4595795, 5139475, 10110749, 22978975, 50553745, 111218239, 252768725, 556091195, 2780455975]

約数ペア:

[(1, 2780455975), (5, 556091195), (11, 252768725), (25, 111218239), (55, 50553745), (121, 22978975), (275, 10110749), (541, 5139475), (605, 4595795), (1699, 1636525), (2705, 1027895), (3025, 919159), (5951, 467225), (8495, 327305), (13525, 205579), (18689, 148775), (29755, 93445), (42475, 65461)]