208405725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1609}}^1$

素因数の和:1790

約数の個数: 48

約数和(自身を含む): 378517440

約数和(自身を除く): 170111715

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 157, 165, 275, 471, 785, 825, 1609, 1727, 2355, 3925, 4827, 5181, 8045, 8635, 11775, 17699, 24135, 25905, 40225, 43175, 53097, 88495, 120675, 129525, 252613, 265485, 442475, 757839, 1263065, 1327425, 2778743, 3789195, 6315325, 8336229, 13893715, 18945975, 41681145, 69468575, 208405725]

約数ペア:

[(1, 208405725), (3, 69468575), (5, 41681145), (11, 18945975), (15, 13893715), (25, 8336229), (33, 6315325), (55, 3789195), (75, 2778743), (157, 1327425), (165, 1263065), (275, 757839), (471, 442475), (785, 265485), (825, 252613), (1609, 129525), (1727, 120675), (2355, 88495), (3925, 53097), (4827, 43175), (5181, 40225), (8045, 25905), (8635, 24135), (11775, 17699)]