19982527315

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{3907}}^1$

素因数の和:4423

約数の個数: 32

約数和(自身を含む): 25034022720

約数和(自身を除く): 5051495405

約数列:

[1, 5, 41, 61, 205, 305, 409, 2045, 2501, 3907, 12505, 16769, 19535, 24949, 83845, 124745, 160187, 238327, 800935, 1022909, 1191635, 1597963, 5114545, 7989815, 9771407, 48857035, 65516483, 97475743, 327582415, 487378715, 3996505463, 19982527315]

約数ペア:

[(1, 19982527315), (5, 3996505463), (41, 487378715), (61, 327582415), (205, 97475743), (305, 65516483), (409, 48857035), (2045, 9771407), (2501, 7989815), (3907, 5114545), (12505, 1597963), (16769, 1191635), (19535, 1022909), (24949, 800935), (83845, 238327), (124745, 160187)]