8218449980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{132257}}^1$

素因数の和:132518

約数の個数: 48

約数和(自身を含む): 18664248960

約数和(自身を除く): 10445798980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 956, 1195, 2390, 3107, 4780, 6214, 12428, 15535, 31070, 62140, 132257, 264514, 529028, 661285, 1322570, 1719341, 2645140, 3438682, 6877364, 8596705, 17193410, 31609423, 34386820, 63218846, 126437692, 158047115, 316094230, 410922499, 632188460, 821844998, 1643689996, 2054612495, 4109224990, 8218449980]

約数ペア:

[(1, 8218449980), (2, 4109224990), (4, 2054612495), (5, 1643689996), (10, 821844998), (13, 632188460), (20, 410922499), (26, 316094230), (52, 158047115), (65, 126437692), (130, 63218846), (239, 34386820), (260, 31609423), (478, 17193410), (956, 8596705), (1195, 6877364), (2390, 3438682), (3107, 2645140), (4780, 1719341), (6214, 1322570), (12428, 661285), (15535, 529028), (31070, 264514), (62140, 132257)]