200721520

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{14503}}^1$

素因数の和:14689

約数の個数: 40

約数和(自身を含む): 469407456

約数和(自身を除く): 268685936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 13840, 14503, 29006, 58012, 72515, 116024, 145030, 232048, 290060, 580120, 1160240, 2509019, 5018038, 10036076, 12545095, 20072152, 25090190, 40144304, 50180380, 100360760, 200721520]

約数ペア:

[(1, 200721520), (2, 100360760), (4, 50180380), (5, 40144304), (8, 25090190), (10, 20072152), (16, 12545095), (20, 10036076), (40, 5018038), (80, 2509019), (173, 1160240), (346, 580120), (692, 290060), (865, 232048), (1384, 145030), (1730, 116024), (2768, 72515), (3460, 58012), (6920, 29006), (13840, 14503)]