7681025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 11570688

約数和(自身を除く): 3889663

約数列:

[1, 5, 11, 17, 25, 31, 53, 55, 85, 155, 187, 265, 275, 341, 425, 527, 583, 775, 901, 935, 1325, 1643, 1705, 2635, 2915, 4505, 4675, 5797, 8215, 8525, 9911, 13175, 14575, 18073, 22525, 27931, 28985, 41075, 49555, 90365, 139655, 144925, 247775, 307241, 451825, 698275, 1536205, 7681025]

約数ペア:

[(1, 7681025), (5, 1536205), (11, 698275), (17, 451825), (25, 307241), (31, 247775), (53, 144925), (55, 139655), (85, 90365), (155, 49555), (187, 41075), (265, 28985), (275, 27931), (341, 22525), (425, 18073), (527, 14575), (583, 13175), (775, 9911), (901, 8525), (935, 8215), (1325, 5797), (1643, 4675), (1705, 4505), (2635, 2915)]