64610975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 99743616

約数和(自身を除く): 35132641

約数列:

[1, 5, 11, 13, 25, 31, 53, 55, 65, 121, 143, 155, 265, 275, 325, 341, 403, 583, 605, 689, 715, 775, 1325, 1573, 1643, 1705, 2015, 2915, 3025, 3445, 3575, 3751, 4433, 6413, 7579, 7865, 8215, 8525, 10075, 14575, 17225, 18073, 18755, 21359, 22165, 32065, 37895, 39325, 41075, 48763, 83369, 90365, 93775, 106795, 110825, 160325, 189475, 198803, 234949, 243815, 416845, 451825, 533975, 994015, 1174745, 1219075, 2084225, 2584439, 4970075, 5873725, 12922195, 64610975]

約数ペア:

[(1, 64610975), (5, 12922195), (11, 5873725), (13, 4970075), (25, 2584439), (31, 2084225), (53, 1219075), (55, 1174745), (65, 994015), (121, 533975), (143, 451825), (155, 416845), (265, 243815), (275, 234949), (325, 198803), (341, 189475), (403, 160325), (583, 110825), (605, 106795), (689, 93775), (715, 90365), (775, 83369), (1325, 48763), (1573, 41075), (1643, 39325), (1705, 37895), (2015, 32065), (2915, 22165), (3025, 21359), (3445, 18755), (3575, 18073), (3751, 17225), (4433, 14575), (6413, 10075), (7579, 8525), (7865, 8215)]