1894945715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2099}}^1$

素因数の和:2196

約数の個数: 64

約数和(自身を含む): 2794176000

約数和(自身を除く): 899230285

約数列:

[1, 5, 13, 17, 19, 43, 65, 85, 95, 215, 221, 247, 323, 559, 731, 817, 1105, 1235, 1615, 2099, 2795, 3655, 4085, 4199, 9503, 10495, 10621, 13889, 20995, 27287, 35683, 39881, 47515, 53105, 69445, 90257, 136435, 178415, 180557, 199405, 451285, 463879, 518453, 677977, 902785, 1173341, 1534369, 1714883, 2319395, 2592265, 3389885, 5866705, 7671845, 8574415, 8813701, 19946797, 22293479, 29153011, 44068505, 99733985, 111467395, 145765055, 378989143, 1894945715]

約数ペア:

[(1, 1894945715), (5, 378989143), (13, 145765055), (17, 111467395), (19, 99733985), (43, 44068505), (65, 29153011), (85, 22293479), (95, 19946797), (215, 8813701), (221, 8574415), (247, 7671845), (323, 5866705), (559, 3389885), (731, 2592265), (817, 2319395), (1105, 1714883), (1235, 1534369), (1615, 1173341), (2099, 902785), (2795, 677977), (3655, 518453), (4085, 463879), (4199, 451285), (9503, 199405), (10495, 180557), (10621, 178415), (13889, 136435), (20995, 90257), (27287, 69445), (35683, 53105), (39881, 47515)]