388914911

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 517104000

約数和(自身を除く): 128189089

約数列:

[1, 7, 11, 29, 49, 77, 139, 179, 203, 319, 539, 973, 1253, 1421, 1529, 1969, 2233, 4031, 5191, 6811, 8771, 10703, 13783, 15631, 24881, 28217, 36337, 44341, 57101, 74921, 96481, 174167, 197519, 254359, 273691, 310387, 399707, 721549, 1219169, 1915837, 2172709, 2797949, 5050843, 7937039, 13410859, 35355901, 55559273, 388914911]

約数ペア:

[(1, 388914911), (7, 55559273), (11, 35355901), (29, 13410859), (49, 7937039), (77, 5050843), (139, 2797949), (179, 2172709), (203, 1915837), (319, 1219169), (539, 721549), (973, 399707), (1253, 310387), (1421, 273691), (1529, 254359), (1969, 197519), (2233, 174167), (4031, 96481), (5191, 74921), (6811, 57101), (8771, 44341), (10703, 36337), (13783, 28217), (15631, 24881)]