1305080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 3456000

約数和(自身を除く): 2150920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 79, 118, 140, 158, 236, 280, 295, 316, 395, 413, 472, 553, 590, 632, 790, 826, 1106, 1180, 1580, 1652, 2065, 2212, 2360, 2765, 3160, 3304, 4130, 4424, 4661, 5530, 8260, 9322, 11060, 16520, 18644, 22120, 23305, 32627, 37288, 46610, 65254, 93220, 130508, 163135, 186440, 261016, 326270, 652540, 1305080]

約数ペア:

[(1, 1305080), (2, 652540), (4, 326270), (5, 261016), (7, 186440), (8, 163135), (10, 130508), (14, 93220), (20, 65254), (28, 46610), (35, 37288), (40, 32627), (56, 23305), (59, 22120), (70, 18644), (79, 16520), (118, 11060), (140, 9322), (158, 8260), (236, 5530), (280, 4661), (295, 4424), (316, 4130), (395, 3304), (413, 3160), (472, 2765), (553, 2360), (590, 2212), (632, 2065), (790, 1652), (826, 1580), (1106, 1180)]