20260890728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1\times {\mathrm{3823}}^1$

素因数の和:4362

約数の個数: 64

約数和(自身を含む): 41340499200

約数和(自身を除く): 21079608472

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 262, 389, 524, 778, 1048, 1556, 1703, 3112, 3406, 3823, 5057, 6812, 7646, 10114, 13624, 15292, 20228, 30584, 40456, 49699, 50959, 99398, 101918, 198796, 203836, 397592, 407672, 500813, 662467, 1001626, 1324934, 1487147, 2003252, 2649868, 2974294, 4006504, 5299736, 5948588, 6510569, 11897176, 13021138, 19332911, 26042276, 38665822, 52084552, 77331644, 154663288, 194816257, 389632514, 779265028, 1558530056, 2532611341, 5065222682, 10130445364, 20260890728]

約数ペア:

[(1, 20260890728), (2, 10130445364), (4, 5065222682), (8, 2532611341), (13, 1558530056), (26, 779265028), (52, 389632514), (104, 194816257), (131, 154663288), (262, 77331644), (389, 52084552), (524, 38665822), (778, 26042276), (1048, 19332911), (1556, 13021138), (1703, 11897176), (3112, 6510569), (3406, 5948588), (3823, 5299736), (5057, 4006504), (6812, 2974294), (7646, 2649868), (10114, 2003252), (13624, 1487147), (15292, 1324934), (20228, 1001626), (30584, 662467), (40456, 500813), (49699, 407672), (50959, 397592), (99398, 203836), (101918, 198796)]