20435415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1400

約数の個数: 64

約数和(自身を含む): 43932672

約数和(自身を除く): 23497257

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 77, 91, 105, 143, 165, 195, 231, 273, 385, 429, 455, 715, 1001, 1155, 1361, 1365, 2145, 3003, 4083, 5005, 6805, 9527, 14971, 15015, 17693, 20415, 28581, 44913, 47635, 53079, 74855, 88465, 104797, 123851, 142905, 194623, 224565, 265395, 314391, 371553, 523985, 583869, 619255, 973115, 1362361, 1571955, 1857765, 2919345, 4087083, 6811805, 20435415]

約数ペア:

[(1, 20435415), (3, 6811805), (5, 4087083), (7, 2919345), (11, 1857765), (13, 1571955), (15, 1362361), (21, 973115), (33, 619255), (35, 583869), (39, 523985), (55, 371553), (65, 314391), (77, 265395), (91, 224565), (105, 194623), (143, 142905), (165, 123851), (195, 104797), (231, 88465), (273, 74855), (385, 53079), (429, 47635), (455, 44913), (715, 28581), (1001, 20415), (1155, 17693), (1361, 15015), (1365, 14971), (2145, 9527), (3003, 6805), (4083, 5005)]