20187098714

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1\times {\mathrm{2083}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 31005918720

約数和(自身を除く): 10818820006

約数列:

[1, 2, 71, 139, 142, 278, 491, 982, 2083, 4166, 9869, 19738, 34861, 68249, 69722, 136498, 147893, 289537, 295786, 579074, 1022753, 2045506, 4845679, 9691358, 20557127, 41114254, 72615463, 142162667, 145230926, 284325334, 10093549357, 20187098714]

約数ペア:

[(1, 20187098714), (2, 10093549357), (71, 284325334), (139, 145230926), (142, 142162667), (278, 72615463), (491, 41114254), (982, 20557127), (2083, 9691358), (4166, 4845679), (9869, 2045506), (19738, 1022753), (34861, 579074), (68249, 295786), (69722, 289537), (136498, 147893)]