998992225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{7109}}^1$

素因数の和:7210

約数の個数: 48

約数和(自身を含む): 1565792640

約数和(自身を除く): 566800415

約数列:

[1, 5, 7, 11, 25, 35, 55, 73, 77, 175, 275, 365, 385, 511, 803, 1825, 1925, 2555, 4015, 5621, 7109, 12775, 20075, 28105, 35545, 49763, 78199, 140525, 177725, 248815, 390995, 518957, 547393, 1244075, 1954975, 2594785, 2736965, 3632699, 5708527, 12973925, 13684825, 18163495, 28542635, 39959689, 90817475, 142713175, 199798445, 998992225]

約数ペア:

[(1, 998992225), (5, 199798445), (7, 142713175), (11, 90817475), (25, 39959689), (35, 28542635), (55, 18163495), (73, 13684825), (77, 12973925), (175, 5708527), (275, 3632699), (365, 2736965), (385, 2594785), (511, 1954975), (803, 1244075), (1825, 547393), (1925, 518957), (2555, 390995), (4015, 248815), (5621, 177725), (7109, 140525), (12775, 78199), (20075, 49763), (28105, 35545)]