18910060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 43083936

約数和(自身を除く): 24173876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 283, 514, 566, 1028, 1132, 1285, 1415, 2570, 2830, 3341, 3679, 5140, 5660, 6682, 7358, 13364, 14716, 16705, 18395, 33410, 36790, 66820, 72731, 73580, 145462, 290924, 363655, 727310, 945503, 1454620, 1891006, 3782012, 4727515, 9455030, 18910060]

約数ペア:

[(1, 18910060), (2, 9455030), (4, 4727515), (5, 3782012), (10, 1891006), (13, 1454620), (20, 945503), (26, 727310), (52, 363655), (65, 290924), (130, 145462), (257, 73580), (260, 72731), (283, 66820), (514, 36790), (566, 33410), (1028, 18395), (1132, 16705), (1285, 14716), (1415, 13364), (2570, 7358), (2830, 6682), (3341, 5660), (3679, 5140)]