18461560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2731}}^1$

素因数の和:2768

約数の個数: 48

約数和(自身を含む): 44996040

約数和(自身を除く): 26534480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2731, 3380, 5462, 6760, 10924, 13655, 21848, 27310, 35503, 54620, 71006, 109240, 142012, 177515, 284024, 355030, 461539, 710060, 923078, 1420120, 1846156, 2307695, 3692312, 4615390, 9230780, 18461560]

約数ペア:

[(1, 18461560), (2, 9230780), (4, 4615390), (5, 3692312), (8, 2307695), (10, 1846156), (13, 1420120), (20, 923078), (26, 710060), (40, 461539), (52, 355030), (65, 284024), (104, 177515), (130, 142012), (169, 109240), (260, 71006), (338, 54620), (520, 35503), (676, 27310), (845, 21848), (1352, 13655), (1690, 10924), (2731, 6760), (3380, 5462)]