81072972

素因数分解:

$2^2\times 3^2\times {\mathrm{661}}^1\times {\mathrm{3407}}^1$

素因数の和:4078

約数の個数: 36

約数和(自身を含む): 205304736

約数和(自身を除く): 124231764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 661, 1322, 1983, 2644, 3407, 3966, 5949, 6814, 7932, 10221, 11898, 13628, 20442, 23796, 30663, 40884, 61326, 122652, 2252027, 4504054, 6756081, 9008108, 13512162, 20268243, 27024324, 40536486, 81072972]

約数ペア:

[(1, 81072972), (2, 40536486), (3, 27024324), (4, 20268243), (6, 13512162), (9, 9008108), (12, 6756081), (18, 4504054), (36, 2252027), (661, 122652), (1322, 61326), (1983, 40884), (2644, 30663), (3407, 23796), (3966, 20442), (5949, 13628), (6814, 11898), (7932, 10221)]