81480399

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 149495808

約数和(自身を除く): 68015409

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 43, 77, 91, 129, 143, 231, 273, 301, 429, 473, 559, 631, 903, 1001, 1419, 1677, 1893, 3003, 3311, 3913, 4417, 6149, 6941, 8203, 9933, 11739, 13251, 18447, 20823, 24609, 27133, 43043, 48587, 57421, 81399, 90233, 129129, 145761, 172263, 189931, 270699, 298463, 352729, 569793, 631631, 895389, 1058187, 1894893, 2089241, 2469103, 3880019, 6267723, 7407309, 11640057, 27160133, 81480399]

約数ペア:

[(1, 81480399), (3, 27160133), (7, 11640057), (11, 7407309), (13, 6267723), (21, 3880019), (33, 2469103), (39, 2089241), (43, 1894893), (77, 1058187), (91, 895389), (129, 631631), (143, 569793), (231, 352729), (273, 298463), (301, 270699), (429, 189931), (473, 172263), (559, 145761), (631, 129129), (903, 90233), (1001, 81399), (1419, 57421), (1677, 48587), (1893, 43043), (3003, 27133), (3311, 24609), (3913, 20823), (4417, 18447), (6149, 13251), (6941, 11739), (8203, 9933)]