20172262495

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{2557}}^1$

素因数の和:3272

約数の個数: 64

約数和(自身を含む): 31212675072

約数和(自身を除く): 11040412577

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 155, 217, 341, 385, 661, 1085, 1705, 2387, 2557, 3305, 4627, 7271, 11935, 12785, 17899, 20491, 23135, 28127, 36355, 50897, 79267, 89495, 102455, 140635, 143437, 196889, 225401, 254485, 396335, 554869, 717185, 871937, 984445, 1127005, 1577807, 1690177, 2774345, 4359685, 6103559, 7889035, 8450885, 11831239, 18591947, 30517795, 52395487, 59156195, 92959735, 130143629, 261977435, 366768409, 576350357, 650718145, 1833842045, 2881751785, 4034452499, 20172262495]

約数ペア:

[(1, 20172262495), (5, 4034452499), (7, 2881751785), (11, 1833842045), (31, 650718145), (35, 576350357), (55, 366768409), (77, 261977435), (155, 130143629), (217, 92959735), (341, 59156195), (385, 52395487), (661, 30517795), (1085, 18591947), (1705, 11831239), (2387, 8450885), (2557, 7889035), (3305, 6103559), (4627, 4359685), (7271, 2774345), (11935, 1690177), (12785, 1577807), (17899, 1127005), (20491, 984445), (23135, 871937), (28127, 717185), (36355, 554869), (50897, 396335), (79267, 254485), (89495, 225401), (102455, 196889), (140635, 143437)]