20836558990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{505619}}^1$

素因数の和:505956

約数の個数: 32

約数和(自身を含む): 40518364320

約数和(自身を除く): 19681805330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 317, 634, 1585, 3170, 4121, 8242, 20605, 41210, 505619, 1011238, 2528095, 5056190, 6573047, 13146094, 32865235, 65730470, 160281223, 320562446, 801406115, 1602812230, 2083655899, 4167311798, 10418279495, 20836558990]

約数ペア:

[(1, 20836558990), (2, 10418279495), (5, 4167311798), (10, 2083655899), (13, 1602812230), (26, 801406115), (65, 320562446), (130, 160281223), (317, 65730470), (634, 32865235), (1585, 13146094), (3170, 6573047), (4121, 5056190), (8242, 2528095), (20605, 1011238), (41210, 505619)]