2990120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 7862400

約数和(自身を除く): 4872280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 181, 236, 280, 295, 362, 413, 472, 590, 724, 826, 905, 1180, 1267, 1448, 1652, 1810, 2065, 2360, 2534, 3304, 3620, 4130, 5068, 6335, 7240, 8260, 10136, 10679, 12670, 16520, 21358, 25340, 42716, 50680, 53395, 74753, 85432, 106790, 149506, 213580, 299012, 373765, 427160, 598024, 747530, 1495060, 2990120]

約数ペア:

[(1, 2990120), (2, 1495060), (4, 747530), (5, 598024), (7, 427160), (8, 373765), (10, 299012), (14, 213580), (20, 149506), (28, 106790), (35, 85432), (40, 74753), (56, 53395), (59, 50680), (70, 42716), (118, 25340), (140, 21358), (181, 16520), (236, 12670), (280, 10679), (295, 10136), (362, 8260), (413, 7240), (472, 6335), (590, 5068), (724, 4130), (826, 3620), (905, 3304), (1180, 2534), (1267, 2360), (1448, 2065), (1652, 1810)]