4005560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7703}}^1$

素因数の和:7727

約数の個数: 32

約数和(自身を含む): 9707040

約数和(自身を除く): 5701480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 7703, 15406, 30812, 38515, 61624, 77030, 100139, 154060, 200278, 308120, 400556, 500695, 801112, 1001390, 2002780, 4005560]

約数ペア:

[(1, 4005560), (2, 2002780), (4, 1001390), (5, 801112), (8, 500695), (10, 400556), (13, 308120), (20, 200278), (26, 154060), (40, 100139), (52, 77030), (65, 61624), (104, 38515), (130, 30812), (260, 15406), (520, 7703)]