51562040

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2011}}^1$

素因数の和:2663

約数の個数: 32

約数和(自身を含む): 116253360

約数和(自身を除く): 64691320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2011, 2564, 3205, 4022, 5128, 6410, 8044, 10055, 12820, 16088, 20110, 25640, 40220, 80440, 1289051, 2578102, 5156204, 6445255, 10312408, 12890510, 25781020, 51562040]

約数ペア:

[(1, 51562040), (2, 25781020), (4, 12890510), (5, 10312408), (8, 6445255), (10, 5156204), (20, 2578102), (40, 1289051), (641, 80440), (1282, 40220), (2011, 25640), (2564, 20110), (3205, 16088), (4022, 12820), (5128, 10055), (6410, 8044)]