280712328

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{899719}}^1$

素因数の和:899741

約数の個数: 32

約数和(自身を含む): 755764800

約数和(自身を除く): 475052472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 899719, 1799438, 2699157, 3598876, 5398314, 7197752, 10796628, 11696347, 21593256, 23392694, 35089041, 46785388, 70178082, 93570776, 140356164, 280712328]

約数ペア:

[(1, 280712328), (2, 140356164), (3, 93570776), (4, 70178082), (6, 46785388), (8, 35089041), (12, 23392694), (13, 21593256), (24, 11696347), (26, 10796628), (39, 7197752), (52, 5398314), (78, 3598876), (104, 2699157), (156, 1799438), (312, 899719)]