18240560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17539}}^1$

素因数の和:17565

約数の個数: 40

約数和(自身を含む): 45674160

約数和(自身を除く): 27433600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17539, 35078, 70156, 87695, 140312, 175390, 228007, 280624, 350780, 456014, 701560, 912028, 1140035, 1403120, 1824056, 2280070, 3648112, 4560140, 9120280, 18240560]

約数ペア:

[(1, 18240560), (2, 9120280), (4, 4560140), (5, 3648112), (8, 2280070), (10, 1824056), (13, 1403120), (16, 1140035), (20, 912028), (26, 701560), (40, 456014), (52, 350780), (65, 280624), (80, 228007), (104, 175390), (130, 140312), (208, 87695), (260, 70156), (520, 35078), (1040, 17539)]