437780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 1088640

約数和(自身を除く): 650860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 59, 70, 106, 118, 140, 212, 236, 265, 295, 371, 413, 530, 590, 742, 826, 1060, 1180, 1484, 1652, 1855, 2065, 3127, 3710, 4130, 6254, 7420, 8260, 12508, 15635, 21889, 31270, 43778, 62540, 87556, 109445, 218890, 437780]

約数ペア:

[(1, 437780), (2, 218890), (4, 109445), (5, 87556), (7, 62540), (10, 43778), (14, 31270), (20, 21889), (28, 15635), (35, 12508), (53, 8260), (59, 7420), (70, 6254), (106, 4130), (118, 3710), (140, 3127), (212, 2065), (236, 1855), (265, 1652), (295, 1484), (371, 1180), (413, 1060), (530, 826), (590, 742)]