78889876

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 153538560

約数和(自身を除く): 74648684

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 169, 188, 191, 338, 382, 611, 676, 764, 1222, 2197, 2444, 2483, 4394, 4966, 7943, 8788, 8977, 9932, 15886, 17954, 31772, 32279, 35908, 64558, 103259, 116701, 129116, 206518, 233402, 413036, 419627, 466804, 839254, 1517113, 1678508, 3034226, 6068452, 19722469, 39444938, 78889876]

約数ペア:

[(1, 78889876), (2, 39444938), (4, 19722469), (13, 6068452), (26, 3034226), (47, 1678508), (52, 1517113), (94, 839254), (169, 466804), (188, 419627), (191, 413036), (338, 233402), (382, 206518), (611, 129116), (676, 116701), (764, 103259), (1222, 64558), (2197, 35908), (2444, 32279), (2483, 31772), (4394, 17954), (4966, 15886), (7943, 9932), (8788, 8977)]