1556223825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{2081}}^1$

素因数の和:2179

約数の個数: 72

約数和(自身を含む): 2834684640

約数和(自身を除く): 1278460815

約数列:

[1, 3, 5, 13, 15, 25, 39, 59, 65, 75, 169, 177, 195, 295, 325, 507, 767, 845, 885, 975, 1475, 2081, 2301, 2535, 3835, 4225, 4425, 6243, 9971, 10405, 11505, 12675, 19175, 27053, 29913, 31215, 49855, 52025, 57525, 81159, 122779, 135265, 149565, 156075, 249275, 351689, 368337, 405795, 613895, 676325, 747825, 1055067, 1596127, 1758445, 1841685, 2028975, 3069475, 4788381, 5275335, 7980635, 8792225, 9208425, 20749651, 23941905, 26376675, 39903175, 62248953, 103748255, 119709525, 311244765, 518741275, 1556223825]

約数ペア:

[(1, 1556223825), (3, 518741275), (5, 311244765), (13, 119709525), (15, 103748255), (25, 62248953), (39, 39903175), (59, 26376675), (65, 23941905), (75, 20749651), (169, 9208425), (177, 8792225), (195, 7980635), (295, 5275335), (325, 4788381), (507, 3069475), (767, 2028975), (845, 1841685), (885, 1758445), (975, 1596127), (1475, 1055067), (2081, 747825), (2301, 676325), (2535, 613895), (3835, 405795), (4225, 368337), (4425, 351689), (6243, 249275), (9971, 156075), (10405, 149565), (11505, 135265), (12675, 122779), (19175, 81159), (27053, 57525), (29913, 52025), (31215, 49855)]