90990850

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 174004488

約数和(自身を除く): 83013638

約数列:

[1, 2, 5, 10, 25, 50, 73, 97, 146, 194, 257, 365, 485, 514, 730, 970, 1285, 1825, 2425, 2570, 3650, 4850, 6425, 7081, 12850, 14162, 18761, 24929, 35405, 37522, 49858, 70810, 93805, 124645, 177025, 187610, 249290, 354050, 469025, 623225, 938050, 1246450, 1819817, 3639634, 9099085, 18198170, 45495425, 90990850]

約数ペア:

[(1, 90990850), (2, 45495425), (5, 18198170), (10, 9099085), (25, 3639634), (50, 1819817), (73, 1246450), (97, 938050), (146, 623225), (194, 469025), (257, 354050), (365, 249290), (485, 187610), (514, 177025), (730, 124645), (970, 93805), (1285, 70810), (1825, 49858), (2425, 37522), (2570, 35405), (3650, 24929), (4850, 18761), (6425, 14162), (7081, 12850)]