81136825

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{373}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 126884736

約数和(自身を除く): 45747911

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 113, 175, 275, 373, 385, 565, 791, 1243, 1865, 1925, 2611, 2825, 3955, 4103, 6215, 8701, 9325, 13055, 19775, 20515, 28721, 31075, 42149, 43505, 65275, 102575, 143605, 210745, 217525, 295043, 463639, 718025, 1053725, 1475215, 2318195, 3245473, 7376075, 11590975, 16227365, 81136825]

約数ペア:

[(1, 81136825), (5, 16227365), (7, 11590975), (11, 7376075), (25, 3245473), (35, 2318195), (55, 1475215), (77, 1053725), (113, 718025), (175, 463639), (275, 295043), (373, 217525), (385, 210745), (565, 143605), (791, 102575), (1243, 65275), (1865, 43505), (1925, 42149), (2611, 31075), (2825, 28721), (3955, 20515), (4103, 19775), (6215, 13055), (8701, 9325)]