12505220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6871}}^1$

素因数の和:6900

約数の個数: 48

約数和(自身を含む): 32325888

約数和(自身を除く): 19820668

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 6871, 13742, 27484, 34355, 48097, 68710, 89323, 96194, 137420, 178646, 192388, 240485, 357292, 446615, 480970, 625261, 893230, 961940, 1250522, 1786460, 2501044, 3126305, 6252610, 12505220]

約数ペア:

[(1, 12505220), (2, 6252610), (4, 3126305), (5, 2501044), (7, 1786460), (10, 1250522), (13, 961940), (14, 893230), (20, 625261), (26, 480970), (28, 446615), (35, 357292), (52, 240485), (65, 192388), (70, 178646), (91, 137420), (130, 96194), (140, 89323), (182, 68710), (260, 48097), (364, 34355), (455, 27484), (910, 13742), (1820, 6871)]