2618980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1439}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 6773760

約数和(自身を除く): 4154780

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1439, 1820, 2878, 5756, 7195, 10073, 14390, 18707, 20146, 28780, 37414, 40292, 50365, 74828, 93535, 100730, 130949, 187070, 201460, 261898, 374140, 523796, 654745, 1309490, 2618980]

約数ペア:

[(1, 2618980), (2, 1309490), (4, 654745), (5, 523796), (7, 374140), (10, 261898), (13, 201460), (14, 187070), (20, 130949), (26, 100730), (28, 93535), (35, 74828), (52, 50365), (65, 40292), (70, 37414), (91, 28780), (130, 20146), (140, 18707), (182, 14390), (260, 10073), (364, 7195), (455, 5756), (910, 2878), (1439, 1820)]