721003887

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1\times {\mathrm{419}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 1140048000

約数和(自身を除く): 419044113

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 347, 419, 551, 1041, 1257, 1653, 3123, 3771, 4959, 6593, 7961, 10063, 12151, 19779, 23883, 30189, 36453, 59337, 71649, 90567, 109359, 145393, 191197, 230869, 436179, 573591, 692607, 1308537, 1720773, 2077821, 2762467, 4216397, 8287401, 12649191, 24862203, 37947573, 80111543, 240334629, 721003887]

約数ペア:

[(1, 721003887), (3, 240334629), (9, 80111543), (19, 37947573), (29, 24862203), (57, 12649191), (87, 8287401), (171, 4216397), (261, 2762467), (347, 2077821), (419, 1720773), (551, 1308537), (1041, 692607), (1257, 573591), (1653, 436179), (3123, 230869), (3771, 191197), (4959, 145393), (6593, 109359), (7961, 90567), (10063, 71649), (12151, 59337), (19779, 36453), (23883, 30189)]