77791175

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 128241792

約数和(自身を除く): 50450617

約数列:

[1, 5, 7, 11, 23, 25, 35, 49, 55, 77, 115, 161, 175, 245, 251, 253, 275, 385, 539, 575, 805, 1127, 1225, 1255, 1265, 1757, 1771, 1925, 2695, 2761, 4025, 5635, 5773, 6275, 6325, 8785, 8855, 12299, 12397, 13475, 13805, 19327, 28175, 28865, 40411, 43925, 44275, 61495, 61985, 63503, 69025, 96635, 135289, 144325, 202055, 282877, 307475, 309925, 317515, 444521, 483175, 676445, 1010275, 1414385, 1587575, 2222605, 3111647, 3382225, 7071925, 11113025, 15558235, 77791175]

約数ペア:

[(1, 77791175), (5, 15558235), (7, 11113025), (11, 7071925), (23, 3382225), (25, 3111647), (35, 2222605), (49, 1587575), (55, 1414385), (77, 1010275), (115, 676445), (161, 483175), (175, 444521), (245, 317515), (251, 309925), (253, 307475), (275, 282877), (385, 202055), (539, 144325), (575, 135289), (805, 96635), (1127, 69025), (1225, 63503), (1255, 61985), (1265, 61495), (1757, 44275), (1771, 43925), (1925, 40411), (2695, 28865), (2761, 28175), (4025, 19327), (5635, 13805), (5773, 13475), (6275, 12397), (6325, 12299), (8785, 8855)]