20295795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 37537920

約数和(自身を除く): 17242125

約数列:

[1, 3, 5, 13, 15, 29, 37, 39, 65, 87, 97, 111, 145, 185, 195, 291, 377, 435, 481, 485, 555, 1073, 1131, 1261, 1443, 1455, 1885, 2405, 2813, 3219, 3589, 3783, 5365, 5655, 6305, 7215, 8439, 10767, 13949, 14065, 16095, 17945, 18915, 36569, 41847, 42195, 46657, 53835, 69745, 104081, 109707, 139971, 182845, 209235, 233285, 312243, 520405, 548535, 699855, 1353053, 1561215, 4059159, 6765265, 20295795]

約数ペア:

[(1, 20295795), (3, 6765265), (5, 4059159), (13, 1561215), (15, 1353053), (29, 699855), (37, 548535), (39, 520405), (65, 312243), (87, 233285), (97, 209235), (111, 182845), (145, 139971), (185, 109707), (195, 104081), (291, 69745), (377, 53835), (435, 46657), (481, 42195), (485, 41847), (555, 36569), (1073, 18915), (1131, 17945), (1261, 16095), (1443, 14065), (1455, 13949), (1885, 10767), (2405, 8439), (2813, 7215), (3219, 6305), (3589, 5655), (3783, 5365)]