1643740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 4032000

約数和(自身を除く): 2388260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 199, 236, 295, 398, 413, 590, 796, 826, 995, 1180, 1393, 1652, 1990, 2065, 2786, 3980, 4130, 5572, 6965, 8260, 11741, 13930, 23482, 27860, 46964, 58705, 82187, 117410, 164374, 234820, 328748, 410935, 821870, 1643740]

約数ペア:

[(1, 1643740), (2, 821870), (4, 410935), (5, 328748), (7, 234820), (10, 164374), (14, 117410), (20, 82187), (28, 58705), (35, 46964), (59, 27860), (70, 23482), (118, 13930), (140, 11741), (199, 8260), (236, 6965), (295, 5572), (398, 4130), (413, 3980), (590, 2786), (796, 2065), (826, 1990), (995, 1652), (1180, 1393)]