1287650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 2958144

約数和(自身を除く): 1670494

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 283, 325, 350, 455, 566, 650, 910, 1415, 1981, 2275, 2830, 3679, 3962, 4550, 7075, 7358, 9905, 14150, 18395, 19810, 25753, 36790, 49525, 51506, 91975, 99050, 128765, 183950, 257530, 643825, 1287650]

約数ペア:

[(1, 1287650), (2, 643825), (5, 257530), (7, 183950), (10, 128765), (13, 99050), (14, 91975), (25, 51506), (26, 49525), (35, 36790), (50, 25753), (65, 19810), (70, 18395), (91, 14150), (130, 9905), (175, 7358), (182, 7075), (283, 4550), (325, 3962), (350, 3679), (455, 2830), (566, 2275), (650, 1981), (910, 1415)]