78885560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151703}}^1$

素因数の和:151727

約数の個数: 32

約数和(自身を含む): 191147040

約数和(自身を除く): 112261480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151703, 303406, 606812, 758515, 1213624, 1517030, 1972139, 3034060, 3944278, 6068120, 7888556, 9860695, 15777112, 19721390, 39442780, 78885560]

約数ペア:

[(1, 78885560), (2, 39442780), (4, 19721390), (5, 15777112), (8, 9860695), (10, 7888556), (13, 6068120), (20, 3944278), (26, 3034060), (40, 1972139), (52, 1517030), (65, 1213624), (104, 758515), (130, 606812), (260, 303406), (520, 151703)]