15431728

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{439}}^1$

素因数の和:486

約数の個数: 40

約数和(自身を含む): 32463200

約数和(自身を除く): 17031472

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 439, 676, 878, 1352, 1756, 2197, 2704, 3512, 4394, 5707, 7024, 8788, 11414, 17576, 22828, 35152, 45656, 74191, 91312, 148382, 296764, 593528, 964483, 1187056, 1928966, 3857932, 7715864, 15431728]

約数ペア:

[(1, 15431728), (2, 7715864), (4, 3857932), (8, 1928966), (13, 1187056), (16, 964483), (26, 593528), (52, 296764), (104, 148382), (169, 91312), (208, 74191), (338, 45656), (439, 35152), (676, 22828), (878, 17576), (1352, 11414), (1756, 8788), (2197, 7024), (2704, 5707), (3512, 4394)]