81878316

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16931}}^1$

素因数の和:16982

約数の個数: 48

約数和(自身を含む): 212395008

約数和(自身を除く): 130516692

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4836, 16931, 33862, 50793, 67724, 101586, 203172, 220103, 440206, 524861, 660309, 880412, 1049722, 1320618, 1574583, 2099444, 2641236, 3149166, 6298332, 6823193, 13646386, 20469579, 27292772, 40939158, 81878316]

約数ペア:

[(1, 81878316), (2, 40939158), (3, 27292772), (4, 20469579), (6, 13646386), (12, 6823193), (13, 6298332), (26, 3149166), (31, 2641236), (39, 2099444), (52, 1574583), (62, 1320618), (78, 1049722), (93, 880412), (124, 660309), (156, 524861), (186, 440206), (372, 220103), (403, 203172), (806, 101586), (1209, 67724), (1612, 50793), (2418, 33862), (4836, 16931)]