31179520

素因数分解:

$2^8\times 5^1\times {\mathrm{24359}}^1$

素因数の和:24380

約数の個数: 36

約数和(自身を含む): 74687760

約数和(自身を除く): 43508240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 24359, 48718, 97436, 121795, 194872, 243590, 389744, 487180, 779488, 974360, 1558976, 1948720, 3117952, 3897440, 6235904, 7794880, 15589760, 31179520]

約数ペア:

[(1, 31179520), (2, 15589760), (4, 7794880), (5, 6235904), (8, 3897440), (10, 3117952), (16, 1948720), (20, 1558976), (32, 974360), (40, 779488), (64, 487180), (80, 389744), (128, 243590), (160, 194872), (256, 121795), (320, 97436), (640, 48718), (1280, 24359)]