90818680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{42839}}^1$

素因数の和:42903

約数の個数: 32

約数和(自身を含む): 208202400

約数和(自身を除く): 117383720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 42839, 85678, 171356, 214195, 342712, 428390, 856780, 1713560, 2270467, 4540934, 9081868, 11352335, 18163736, 22704670, 45409340, 90818680]

約数ペア:

[(1, 90818680), (2, 45409340), (4, 22704670), (5, 18163736), (8, 11352335), (10, 9081868), (20, 4540934), (40, 2270467), (53, 1713560), (106, 856780), (212, 428390), (265, 342712), (424, 214195), (530, 171356), (1060, 85678), (2120, 42839)]