20123892465

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{971}}^1\times {\mathrm{72719}}^1$

素因数の和:73717

約数の個数: 32

約数和(自身を含む): 33928243200

約数和(自身を除く): 13804350735

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 971, 2913, 4855, 14565, 18449, 55347, 72719, 92245, 218157, 276735, 363595, 1090785, 1381661, 4144983, 6908305, 20724915, 70610149, 211830447, 353050745, 1059152235, 1341592831, 4024778493, 6707964155, 20123892465]

約数ペア:

[(1, 20123892465), (3, 6707964155), (5, 4024778493), (15, 1341592831), (19, 1059152235), (57, 353050745), (95, 211830447), (285, 70610149), (971, 20724915), (2913, 6908305), (4855, 4144983), (14565, 1381661), (18449, 1090785), (55347, 363595), (72719, 276735), (92245, 218157)]